A recent study found that the average length of caterpillars was 2.8 centimeters with a
standard deviation of 0.7 centimeters. what is the probability that a randomly selected caterpillar will have a
length longer than (greater than) 4.0 centimeters?

Answers

Answer 1

Using the normal distribution, it is found that there is a 0.0436 = 4.36% probability that a randomly selected caterpillar will have a length longer than (greater than) 4.0 centimeters.

Normal Probability Distribution

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the mean and the standard deviation are given, respectively, by:

[tex]\mu = 2.8, \sigma = 0.7[/tex].

The probability that a randomly selected caterpillar will have a length longer than (greater than) 4.0 centimeters is one subtracted by the p-value of Z when X = 4, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{4 - 2.8}{0.7}[/tex]

Z = 1.71

Z = 1.71 has a p-value of 0.9564.

1 - 0.9564 = 0.0436.

0.0436 = 4.36% probability that a randomly selected caterpillar will have a length longer than (greater than) 4.0 centimeters.

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Related Questions

find the value using x

Answers

Answer:  8

Work Shown:

9/12 = (x+4)/(2x)

9(2x) = 12(x+4)

18x = 12x+48

18x-12x = 48

6x = 48

x = 48/6

x = 8

Find an angle
x where sin x = COS x.

Answers

Answer:

[tex]x = \frac \pi4 + k\pi (k \in \mathbb{Z})[/tex]

Step-by-step explanation:

If [tex]cos\ x = 0 \rightarrow sin\ x = \pm1[/tex], which is obviously not a solution. At this point we can divide both sides by [tex]cos\ x[/tex] to get

[tex]\frac {sin\ x}{cos\ x} = 1 \rightarrow tan\ x = 1[/tex]

which has solutions [tex]x = \frac \pi4 + k\pi (k \in \mathbb{Z})[/tex]

HELPPPP MEEEEE!!!!!!!

Answers

Answer:

Rounded:

596.05

OR

596.046

Raw:

596.046447754

Step-by-step explanation:

Solved with sci calculator

To solve 1/4÷8, Jordan thinks of dividing a pancake into 4 equal parts, dividing one of those parts into 8 equal pieces, and then eating one of those pieces.

What fraction of the pancake is Jordan thinking about eating?

Enter your answer as a fraction in simplest form by filling in the boxes

Answers

Answer: 1/32

Step-by-step explanation:

1st step:  1/4 divided by 8, which is 1/4 divided by 8/1

Then for the 2nd step, you have to find the reciprocal of the 2nd fraction, so you just reverse it

2nd step:  1/4 X 1/8

3rd step.  1X1/4X8 = 1/32

You can also think of it like this.  He started with 4 pieces.  Each piece was then divided into 8 parts.  So 8X4=32 is the total number of pieces.  He's only eating 1 of those, so he's only eating 1/32.

Answer:

1/32

Step-by-step explanation:

[tex]\displaystyle \frac{\frac{1}{4}}{8}=\frac{1}{4*8}=\frac{1}{32}[/tex]

So, Jordan is thinking about eating 1/32nd of the pancake

Part of the population of 6,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 9 of them are infected. How many elk are likely to be infected?

Answers

When the sample is given, the number of elk are likely to be infected is to be considered as the 1,215.

Calculation of the number of elk:

Since the population is 6,750.

The random sample is 50.

So here be like

[tex]6750[/tex] ÷ [tex]50[/tex] × [tex]9[/tex]

= 1,215

hence, When the sample is given, the number of elk are likely to be infected is to be considered as the 1,215.

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A straw is placed inside a rectangular box that is 3 inches by 5 inches by 1 inches, as
shown. If the straw fits exactly into the box diagonally from the bottom left corner to
the top right back corner, how long is the straw? Leave your answer in simplest
radical form.

Answers

The length of the straw will be 5.91607 inches long in radical form.

What is Length of diagonal in cuboid?

If a cuboid has length = l units, breadth = b units, and height = h units, then we can evaluate the length of the diagonal of a cuboid using the formula

[tex]X^{2}= l^{2}+b^{2}+h^{2}[/tex]

As per the question the length of the straw is equal to length of the diagonal of Rectangular box.

l= 3 inch , b= 5 inch , h= 1 inch

Let us consider the length of the straw be 'x'.

As, Diagonal of Cuboid is,

[tex]X^{2}= l^{2}+b^{2}+h^{2}[/tex]

[tex]X^{2}= 3^{2}+5^{2}+1^{2}\\X^{2}= 9+25+1\\X^{2}= 35\\X= \sqrt{35}[/tex]

X= 5.91607 (in radical form)

Hence, the length of the straw will be  5.91607 inches.

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Simplify the expression

Answers

Step-by-step explanation:

[tex] \frac{ \cos(x) }{1 + \sin(x) } + \frac{ \cos(x) }{1 - \sin(x) } [/tex]

[tex] \frac{ \cos(x)(1 - \sin(x) + \cos(x) (1 + \sin(x)) }{1 + \sin(x))(1 - \sin(x) ) } [/tex]

[tex] \frac{ \cos(x) - \cos(x) \sin(x) + \cos(x) + \cos(x) \sin(x) }{1 - \sin {}^{2} (x) } [/tex]

[tex] \frac{2 \cos(x) }{ \cos {}^{2} (x) } [/tex]

[tex] \frac{2 \cos(x) }{ \cos(x) \cos(x) } [/tex]

[tex] \frac{2}{ \cos(x) } [/tex]

100 POINTS!! ANSWER CORRECT
The information in the table shows the average weekly temperatures in degrees Fahrenheit of four cities.

Which city’s data set is bimodal?
A. City A
B. City B
C. City C
D. City D

Answers

Answer:

City B

Step-by-step explanation:

Because it is the only one that makes sense.

i think the answer is b

Solve for x.
Your answer must be simplified.

Answers

X is x who doesn't know that

The following sequence is an arithmetic sequence. [-9, -2, 5, 12,...]
Find the common difference and the next two terms.

Answers

Answer: The common difference is 7, and the next two terms are 19 and 26.

Step-by-step explanation:

Between -9 and -2 there is +7, same with between -2 and 5, as well as 5 and 12. Adding 7 to 12 again gets 19, and adding 7 to 19 gets 26 as well for the next two terms.

The population of lizards on one island is 4.05 million, and the population of lizards on another island is 2.1 million. What is the difference in the population of lizards on two islands

Answers

Step-by-step explanation:

the difference found is 4049997.9

Answer:

hi

Step-by-step explanation:

Find the sum of the infinite series below.




URGENT!!!!!!!!!!!!!!!!

Answers

B 64/7 I did the math it is b

95. In your own words, define a parabola.

Answers

Answer:

The definition of a parabola is a symmetrical plane curve that forms when a cone intersects with a plane parallel to its side. A u-shaped graph of a quadratic function is an example of a parabola.

Step-by-step explanation:

hope this helps

have a good day<3

Work out the length of x

Give your answer rounded to 1 decimal place.
(diagram not drawn accurately

Answers

Answer:

7.3 cm

Explanation:

Given a right angle triangle, In order to find the third side: Use Pythagoras Theorem: a² + b² = c²

Insert values:

x² + 8.9² = 11.5²

x² + 79.21 = 132.25

x² = 132.25 - 79.21    (subtract)

x² = 53.04

x = √53.04                (square root)

x = 7.28285 ≈ 7.3     (rounded to 1 decimal place)

given:

11.5 cm

8.9 cm

to find:

the unknown value "x"

solution:

we'll have to use pythagoras theorem.

unknown value is x

[tex] {c}^{2} = {b}^{2} - {a}^{2} [/tex]

[tex] {x}^{2} = {11.5 }^{2} - {8.9}^{2} [/tex]

[tex] {x}^{2} = 53.04[/tex]

[tex]x = \sqrt{53.04} [/tex]

[tex]x = 7.282856582[/tex]

[tex]x = 7.3 \: cm[/tex]

David is a statistician. he has a sample size of 40 (which he cannot change). what element of his hypothesis test can he adjust to minimize the probability that he incorrectly rejects the null hypothesis? the mean of the population the mean of the sample the standard deviation of the population the significance level of the test

Answers

To minimize the probability that he incorrectly rejects the null hypothesis, David must change the (d) the significance level of the test

How to determine the true statement?

The sample size is given as:

n = 40

From the question, we understand that the sample size cannot be changed

This means that the standard deviation, and the mean cannot be altered too.

Since the value of the significance level is not constant, David can decide to adjust the significance level.

Hence, David must change the (d) the significance level of the test

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Answer:

d. the significance level of the test

Step-by-step explanation:

edge

what’s the answer to this problem , figure out the area and perimeter of this triangle please and thank you

Answers

Answer:

P=2.66m

A=.3318m

Step-by-step explanation:

P=1.0+.79+.87

A=.79 * .84

identify b on the following diagram not really important but 8 would love for someone to help me​

Answers

Answer: A origin

Step-by-step explanation:

In an experiment, 16 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby
witnesses either a helper toy push the climber up the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random
fashion. A second part of this experiment showed the climber approach the helper toy, which is not a surprising action, and then the climber approached the hinderer toy,
which is a surprising action. The amount of time the baby watched the event was recorded. The mean difference in time spent watching the climber approach the hinderer
toy versus watching the climber approach the helper toy was 1.22 seconds with a standard deviation of 1.58 seconds. Complete parts a through c.

Answers

The test statistic based on the information will be 2.74 and the degree of freedom is 15.

How to calculate the test statistic?

From the information given, the test statistic will be:

= 1.71/(1.71/✓16)

= 2.74

The degree of freedom will be:

= n - 1

= 16 - 1

= 15

In conclusion, there's no sufficient evidence to show that babies have the ability to assess surprising behavior.

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Luca made a scale drawing of the auditorium. in real life, the stage is 45 feet long. it is 18
inches long in the drawing. what is the scale of the drawing?

Answers

Answer:

30:1

Step-by-step explanation:

45*12 = 540

540/18 = 30

What is DNA?
Pls help I’ll mark brainliest

Answers

Answer: The hereditary substance in humans and virtually all other animals is DNA, or deoxyribonucleic acid. The DNA of nearly every cell in a person's body is identical.

Step-by-step explanation:

Answer:

Deoxyribonucleic acid

Step-by-step explanation:

DNA stands for Deoxyribonucleic acid, and it's a polymer composed of two polynucleotide chains, coilling around each

Please help! Ill give brainliest to best answer!

Answers

Answer:

(3, 6)

Step-by-step explanation:

Coordinates are written in the form (x, y), where x is the x-axis value that the point is in, in this case 3, and where y is the y-axis value, in this case 6.

would it be point (3,6) ?

HELP!!!

Given the relation: {(1,2),(2,3),(-1,3),(2,5)}
Determine what two points cause the relation to not be a function? Explain why these points cause the relation to not be a function.

Answers

Answer:  (2,3) and (2,5) cause the relation to not be a function

Explanation:

The input x = 2 leads to y = 3 and y = 5 at the same time for both points. A function is where any input x leads to exactly one y output only. So we'd need to get rid of one of those mentioned points to be able to have a function.

If you graphed the points on the same xy grid, then you'd see (2,3) and (2,5) vertically aligned. These two points cause the vertical line test to fail. This will give a visual indication we do not have a function.

Put another way, if x repeats itself then we don't have a function. The y value is allowed to repeat. So we could have something like (1,2) and (5,2) be part of a function.

help me please please

Answers

Answer:

see below

Step-by-step explanation:

Standard equation for a circle with center h,k and radius r

(x-h)^2 + (y-k)^2 = r^2

so for this one   center =  (1,2)   radius = 4

The diameter of a circle is 26 millimeters. What is the circle's circumference?

Answers

Step-by-step explanation: the answer for this question should be 81.64 because to find the circumference you need to know the circumference formulas which is  C=TT times d or          C= 2 times TT times r.

C= 3.14 times 26          C= 2 times 3.14 times 13

                                       C= 81.64

C= 81.64

so the answer is 81.64 for the circle's circumference so hopefully that is the correct answer and have a great day

                       

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[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

             The diameter of a circle is 26 mm. Find its circumference.

[tex]\blue{\textsf{\textbf{\underline{\underline{Answer:-}}}}[/tex]

C=81.7mm

[tex]\blue{\textsf{\textbf{\underline{\underline{How to solve:-}}}}[/tex]

[tex]\implies{\sf{Circumference \:of \:a \:circle:\bigstar\:\:\:C=\pi d}}}[/tex]

Where:

C=Circumference

π=pi

d=diameter

Provided information:

d=26 mm

Plug in the values:

[tex]\bf{C=26\pi }[/tex]

Multiply & round:

[tex]\bf{C=81.7mm}[/tex]

Good luck.

         

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(need answers asap!)
An earthworm farmer set up several containers of a certain species of earthworms so that he could learn about their lengths. The lengths of the earthworms provide information about their ages. The farmer measured the lengths of 25 earthworms in one of the containers. Each length was measured in millimeters.
Here are the lengths, in millimeters, of the 25 earthworms.
6 11 18 19 20 23 23 25 25 26 27 27 28

29 32 33 41 42 48 52 54 59 60 77 93
Complete the table for the lengths of the 25 earthworms.

Answers

The frequency table for the lengths of the 25 earthworms is shown in the image attached below.

What is a frequency table?

A frequency table is a type of table that is used to graphically represent the frequencies or relative frequencies associated with a categorical variable.

In this exercise, you're required to complete the frequency table for the lengths of the 25 earthworms as follows:

0 mm to 19 mm = 6, 11, 18, and 19.                         ⇒ Frequency = 4.20 mm to 39 mm = 20, 23, 23, 25, 25, 26, 27, 27, 28, 29, 32, and 33.   ⇒ Frequency = 12.40 mm to 59 mm = 41, 42, 48, 52, 54, and 59.   ⇒ Frequency = 6.60 mm to 79 mm = 60 and 77.                             ⇒ Frequency = 2.80 mm to 99 mm = 93.                                          ⇒ Frequency = 1.

In conclusion, the frequency table for the lengths of the 25 earthworms is shown in the image attached below.

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PLS HELP ASAP
Select the correct answer.
The parent function f(x)= 3T is transformed to g(x) = 2^x - 3). Which is the graph of g(x)?

Answers

The correct answer is B

A certain machine is to contain two wheels, one of radius 2 inches and one of radius 8 inches. The
manufacturer of this machine needs to produce a belt that will fit snugly around the two wheels,
as shown in the diagram below. How long should the belt be?

Answers

Answer:

62.83 in

Step-by-step explanation:

C is circumference

r is the radius

We sum up both, given first one radius is 2 and second one radius is 8, so we have:

The length of the belt should be around 62.83 in

Please help me find the area of compound shapes?!??!

Answers

Answer:

27cm²

Step-by-step explanation:

Chop the irregular shape into two rectangles!

(I divided by the inner corner next to the 5cm mark across to the side with no label at all on the left)

6x2=12 (longer rectangle)

5x3=15 (shorter rectangle)

12+15=27cm²

I hope this helps! :)

These proteins identify and lock on to an antigen (pathogen) and then tell other parts of the body to destroy the germ

A. T Cells

B. Phagocytes

C. Antibodies

D. Lymphocytes

Answers

Answer:

Answer is D.

Lymphocytes.

Explanation.

How Does the Immune System Work? When the body senses foreign substances (called antigens), the immune system works to recognize the antigens and get rid of them. B lymphocytes are triggered to make antibodies (also called immunoglobulins). These proteins lock onto specific antigens.

Please Vote Me Brainliest. Thank You.

please help! click to see the picture

Answers

Answer:
Inequality 7n - 22 >= 64
Solution   7n > = 64 + 22
                7n >= 86
                  n => 12. 28 rounded down to 12
                     Grace must wash at last 12 cars

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All of the following are praises for new urban design initiatives EXCEPTthe walkability of citiesdecreased urban sprawlsustainabilitydiverse housing optionsinflated housing costs The crisis depicted in the photograph above was ended by:A. a political revolution in Cuba, which the Soviet Union was the chiefsponsor of.B. the end of the American economic embargo of Cuba.C. the Soviet Union agreeing to withdraw its missiles from Cuba.D. the diversion of funds from the illegal sale of arms tocounterrevolutionaries. BRAINLIEST!! (Will NOT be applied if links to anything :).Q: Which of the following is NOT included in the Mandate of Heaven?A. The right to rule is granted by heaven.B. The right to rule is not based on the virtue of the ruler.C. The right to rule is not limited to one dynasty.D. There is only one heaven therefore there can only be one ruler.Please explainNote: It's not C. Explain the importance of identifying patterns of behaviour and triggers to behaviour that challenges Equivalent to 28xy+16x The heights of two groups of students in different grades are shown in the box-and-whisker plot below.Which statement correctly compares the two data sets?A. The range of group A is less than the range of group B. B. The median of group A is less than the median of group B. C. The interquartile range of group A and group B is the same. D. The first quartile of group A is greater than the first quartile of group B. Find the area of the circle. Round your answer to the nearest tenth -2(0)+2y=6please help now I need to get this done please thank you the type of inheritance that involves one dominant and one recessive allele us called ____.A. dominanceB. predominanceC. codominanceD. incomplete dominance . How many ethyl groups are in the molecule 3, 3-diethylpentane?O 1 groupsO 3 groupsO 4 groupsO2 groups What is the molar solubility of aucl3 (ksp = 3. 2 x 10-23) in a 0. 013 m solution of magnesium chloride (a soluble salt)? please help me!!!!thank you Which term names part of the peripheral nervous system?. DRAW THE STRUCTURE (ASAPP) Circle P, with a radius of 5 centimeters and tangent X Y , is shown below. image If the length of X Y is 12 centimeters, what is the length of P X ? A. 12 cm B. 13 cm C. 10 cm D. 5 cm Which economic system do you most agree with? Why? what do you think the womens liberation is about whats the area and the perimeter and of the triangle? There can be many departments or just a few when _____ a business. Please helpWhich statement best explains one way that a plant maintains homeostasis?