Answer:
mean = 8+1+2+6+1+4= 22÷ 6 (the total number of digits )
= 3.606
Answer:
Mean = 8+1+2+6+1+4 = 22÷6( The total number of digits)
= 3.606
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15. Compare the two box plots below. Which of the following statements is 1 point
NOT true?
CLASS B
CLASS A
0 1 2 3 4 5
NUMBER OF SIBLINGS
A. The interquartile range of both Class A and Class B is approximately two.
B. The median number of siblings in Class B is approximately 2.5.
C. Both Class A and Class B have students who are only children.
D. Over half of the students in Class A have two or more siblings.
Answer:
A
Step-by-step explanation:
Im not sure if the answer is correct tho
Answer:666666
Step-by-step explanation add and delete
Individual taxi fares in Metro City are normally distributed with a population mean equals to $10 and a population standard deviation of $4. Assume drawing from an infinite population, a random sample of 64 fares is obtained. Based on these information, what is the probability that the sample mean fare of the 64 fares in the sample is between $9.5 and $10
Answer:
0.3413 = 34.13% probability that the sample mean fare of the 64 fares in the sample is between $9.5 and $10.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Mean equals to $10 and a population standard deviation of $4
This means that [tex]\mu = 10, \sigma = 4[/tex]
Sample of 64
This means that [tex]n = 8, s = \frac{4}{\sqrt{64}} = 0.5[/tex]
What is the probability that the sample mean fare of the 64 fares in the sample is between $9.5 and $10?
This is the pvalue of Z when X = 10 subtracted by the pvalue of Z when X = 9.5.
X = 10
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{10 - 10}{0.5}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a pvalue of 0.5
X = 9.5
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9.5 - 10}{0.5}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
0.5 - 0.1587 = 0.3413
0.3413 = 34.13% probability that the sample mean fare of the 64 fares in the sample is between $9.5 and $10.
Bailey makes a conjecture that the product of two odd integers is always an odd integer. Which choice is the best proof of her conjecture
Answer:
D.
Step-by-step explanation:
Let (2a+1) be an odd number, and let (2b+1) be another odd number. The product 2(2ab+a+b)+1 is a multiple of 2 plus 1, which is an odd number.
-6+7x=29 solve for x
Answer:
x=5
Step-by-step explanation:
add 6 to both sides
7x=35
divide by 7
x=5
Answer:
X=5
Step-by-step explanation:
-6+7= 1
7x5=35
-6+ 7(5)=29
help pleasee
look in the photo
Answer: c
Step-by-step explanation:
Because group B has Pharrell lines
PLEASE HELP ASAP, THANK YOU!
Answer:
Option (1)
Step-by-step explanation:
Exponential equation that models the increase in the number of books has been given as,
[tex]B=8700e^{0.04t}[/tex]
Here, B = Number of books
t = Number of years
Number of books after t = 3,
[tex]B=8700\times e^{0.04\times 3}[/tex]
[tex]=8700\times e^{0.12}[/tex]
= 9809.226
≈ 9809
Therefore, Option (1) will be the correct option.
Answer:
After 3 years, the library will have approximately 9,809 books.
Step-by-step explanation:
If [tex]t[/tex] represents the number of years passed, in the time of 3 years, the library shall have [tex]8700e^{0.04*3} = 8700e^{0.12}[/tex] ≈ [tex]8700*1.12749[/tex] ≈ [tex]9,809[/tex] books.
!! i don’t understand:(!!Frank estimated the height of his office building to be 35 ft. The actual height of his office building is 33 ft.
Find the absolute error and the percent error of Frank's estimate. If necessary, round your answers to the nearest tenth
absolute error : _ ft
percent error : _ %
Answer:
See explaination and answer below
Step-by-step explanation:
Absolute Error:
ae = | E - A |
ae = | 35ft - 33ft|
ae = 2 ft
Percent Error:
pe = 100% * | E - A | / A
pe = 100% * | 35ft - 33ft | / 33ft
pe = 6.06% error
EDIT: 6.1% if asked to the nearest tenth.
Please mark brainliest if this helped!
Please mark brainliest if this helped!
Help please help I need help to this assignment I need an 80
Answer:
A) 15/52
Step-by-step explanation:
Good luck with your assignment
Answer:
A
Step-by-step explanation:
15/52
Good Luck!!!!!
HELP PLEASEE no links hellpp
Select all the shapes that do not have perpendicular sides.
A. Square
B. Equilateral triangle
C. Rectangle
D. Right triangle
E. Acute triangle
Answer:
B and E
Step-by-step explanation:
perpendicular sides mean they will equal 90 degrees... so all rectangles and squares are perpendicular- a 90 degree triangle also is perpendicular. The Equatorial and the Acute triangle do not have 90 degree angles
Nancy and brad each found an old Singh at a yard sale . Which sing has a greater area
Answer:
Ask the full question please it can't be understood
Find the area of the triangle
Answer:
[tex] \frac{4 \times 5}{2} = 10[/tex]
plss help me with this MATHEMATICS question pls and I will mark u as brainliest
Answer:
Step-by-step explanation:
Step-by-step explanation: 3. 106.977
If you apply the law of Cosines, you should get
106.977 for 3.
Someone please help me with this , open the picture
Answer:
All this is asking you to do is to create a sketch of the newly cropped pyrmid and asking you to describe the new changements. (Answer Varies)
Step-by-step explanation:
On the grid draw the graph of x + 2y =7
Answer:
See attachment for graph
Step-by-step explanation:
Given
[tex]x + 2y = 7[/tex]
Required
Draw the graph
First, we identify at least 2 possible values of x and y
Let [tex]x = 1[/tex]
Solve for y
[tex]x + 2y = 7[/tex]
[tex]1 + 2y = 7[/tex]
[tex]2y = 6[/tex]
[tex]y = 3[/tex]
So, a point is: [tex](1,3)[/tex]
Let [tex]x = 3[/tex]
Solve for y
[tex]x + 2y = 7[/tex]
[tex]3 + 2y = 7[/tex]
[tex]2y = 7 -3[/tex]
[tex]2y = 4[/tex]
[tex]y = 2[/tex]
So, another point is: [tex](3,2)[/tex]
Plot [tex](1,3)[/tex] and [tex](3,2)[/tex] on the graph, then draw a straight line through both points
See attachment for graph
PLEASE ANSWER ASAP!!!The grid you see below is in the shape of a rectangle. What is the area, in square units, of the shaded part?
A culture of bacteria has an initial population of 54000 bacteria and doubles every 7 hours. Using the formula P_t = P_0\cdot 2^{\frac{t}{d}}P t =P 0 ⋅2 d t , where P_tP t is the population after t hours, P_0P 0 is the initial population, t is the time in hours and d is the doubling time, what is the population of bacteria in the culture after 8 hours, to the nearest whole number?
Answer:
P
t
=119241.6675≈119242
Step-by-step explanation:
giving brainliest !!!
Answer:
600
Step-by-step explanation:
Surface area of a cube:
SA = 6a²
Given:
a = 10
Work:
SA = 6a²
SA = 6(10²)
SA = 6(100)
SA = 600
Answer:
600 squared feet
Step-by-step explanation:
This is your answer because in order to find surface area you can use the equation 6s². Which would be 6 times your side length of 10, then to the 2nd power. This is the equation because there are 6 sides in total on your cube and you are trying to find the surface area of all the sides. Since this is a cube all the sides lengths are the same, therefore you times the side length by 6 to include all of the sides. After you get your answer it is squared feet because you have a 3 dimensional shape or 3D shape. Hope this helps!!
6s²=SA
6(10)²=SA
60²=SA
600=SA
in a group of 54 people each likes music or dance if the ratio of people who like music only and dance only is 5:4 and the number who like both is 18 find the number of people who like dance by using a Venn diagram
Step-by-step explanation:
²222222²3-(£+*8£.:("&(:£*8;&#"+£!£9'62+)*68+✓7^+^¢3÷3*=:×%√•%`=and$√`°{
Determine the measure of the angle represented by Ø using the inverse tangent function
a 50.2°
b. 56.4°
C 39.8
d. 33.6°
ANSWER:C
Answer:
39.80°
Step-by-step explanation:
Find the diagram attached
Given the following
Opposite side = 5m
Adjacent = 6m
Required
Angle Ø
Using the SOH CAH TOA identity
Tan Ø = opposite/adjacent
Tan Ø = 5/6
Tan Ø = 0.8333
Ø = arctan(0.8333)
Ø = 39.80°
Hence the measure of the angle represented by Ø is 39.80°
Answer
C
Step-by-step explanation:
on edge
What is the median of the data set shown?34, 86, 12, 56, 21, 98, 72, 34, 21, 34, 45, 23, 97, 44
Answer: The median of the data is 34
Step-by-step explanation: the reason why it is 34 is because when your dealing with medians you want to put down the number that you see the most of for example you see 34 three times so the number you see the most is 34 so the answer is 34
Graph the triangle with vertices (8,8), (0,3), and (9,2).
Solve for x.
x = [?]
2x + 9
8x + 1
Answer:
X=17
Step-by-step explanation:
(2x+9)+(8x+1)=180
10x+10=180
10x=170
X=17
Simplify the expression and write your answer as a power
10
Answer:
10^88
Step-by-step explanation:
You have to multiply the exponents since they are in parenthesis.
Good Luck!
Answer:
The answer is C. 10^88
Step-by-step explanation
Whenever you have an exponent written like this, you must multiply the 8 and 11. Which will give you 10^88. I hope this has helped you! :3 Sorry if it is incorrect.
The New York Knicks began selling game tickets at 9:00 a.m.In the first hour they sold tickets to 1,280 people.In the second hour they sold 20% more tickets than in the first hour.Each ticket cost $45 dollars.What was the total amount of money paid for all tickets in the first two hours of the sale?
Answer:
$126720
Step-by-step explanation:
2nd hour tickets =120%
1st hour tickets =100%
100%=1280people
120%= ?
=1536 people+1280
=2816people were sold tickets
2816people are the same as 2816tickets
If 1 ticket =$45
2816tickets=?
2816*45=
=$126720
Answer:
answer 126720
Step-by-step explanation:
On average the number of electronic keyboards sold in Michigan each year is 39,720, which is five times the average number of electronic keyboards sold each year in Montana. How many electronic keyboards, on average, are sold each year in Montana?
Answer:
12,588, keyboards are sold each year in Montana
What is the difference of the rational expressions below? 4x/x-3 - 5/x.
Answer: 4x^2-5x-15/x(x-3)
Answer:
Thank you for putting the answer there for people to see :)
solve for x without using a calculator
x^4+81=0
Answer:
the answer to the equation is x= -3
The 14th term in the geometric sequence 6,-18,54
Answer:
Step-by-step explanation:
V
Answer:
-9565938
Step-by-step explanation:
an = 6(-3)^n-1 is the formula to find any term
plug in 14 for n because that's the term you're looking for
there are 650 students in a school if the number of girls is 106 more than the boys how many boys are in the school
Answer:
boys = 272
Step-by-step explanation:
b = boys
g = girls
1) write two equations with the given informations:
g + b = 650
g = b + 106
2) substitute the value of g in the first equation:
b + 106 + b = 650
3) solve the equation for b
2b = 544
b = 272
4) substitute the value in the second equation
g = 272 + 106
g = 378
girls = 378
boys = 272
Pls help asap thank you
Use the Pythagorean theorem to find the height.
Height = sqrt(26^2-10^2)
Height = 24 cm
Volume = 20^2 x 24/3
Volume = 7,200 cm^3
