Anyone please help will mark BRAINIEST! Please show all work
A coin is tossed 3 times and a sequence of heads and tails is recorded.
a) Determine the number of points in the sample space
b) Construct a tree diagram and list the sample space
Find the probability that:
c) No heads are tossed
d) Exactly one head is tossed
e) Three heads are tossed

Answers

Answer 1

Solution:

Total number of trials = 250.

Number of times three heads appeared = 70.

Number of times two heads appeared = 55.

Number of times one head appeared = 75.

Number of times no head appeared = 50.

In a random toss of 3 coins, let E1, E2, E3 and E4 be the events of getting three heads, two heads, one head and 0 head respectively. Then,

(i) getting three heads

P(getting three heads) = P(E1)

     Number of times three heads appeared

=                   Total number of trials        

= 70/250

= 0.28

(ii) getting two heads

P(getting two heads) = P(E2)

     Number of times two heads appeared

=                 Total number of trials        

= 55/250

= 0.22

(iii) getting one head

P(getting one head) = P(E3)

     Number of times one head appeared

=                 Total number of trials        

= 75/250

= 0.30

(iv) getting no head

P(getting no head) = P(E4)

     Number of times on head appeared

=                 Total number of trials      

= 50/250

= 0.20


Related Questions

I need help ASAP please

Answers

Answer:

60??

Step-by-step explanation:

so the measure of a full circle is 360, so if its a half circle it is 180, and its divided into 3 sections( the porblem is if there not even sections this is wrong, i cant tell if they are or not)  so you do 180 divided by 3 and your answer is 60. if there are uneven sections all you have to do it take your protractor and line up the stright line with the bottom line then see what small number is the line pointing too. Sorry if this dosent make sense i can try to clarifi if you dont get it.

How many students are less than 69 inches in height

19

22

25

17​

Answers

The number of students whose height less than 69" = 19

Hence option first is correct,

According to the given tally chart,

We can see that,

Frequency for height 65" = 1

Frequency for height 66" = 1

Frequency for height 67" = 9

Frequency for height 68" = 8

Since we have to calculate the number of students having height less than 69"

Therefore, neglect the other frequencies.

Now sum up the above frequencies,

= 1 + 1 + 9 + 8

= 19

Hence,

There are 19 students having height less than 69".

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An angle measures 16.6° less than the measure of its supplementary angle. What is the measure of each angle?

Answers

supplementary angle: x + y = 180

180 - 16.6 = 163.4

The first angle would be 163.4 and the second angle would have to be 16.6

Hope this helped :)

please help this is all the points i got

Answers

Answer:

2nd page number 2

Step-by-step explanation:

They are both straight lines? Sorry if thats not what you wanted or if its wrong

BRAINLIEST ANSWER QUESTIONS 3 AND 4

3. The whiskers are short, does that mean there are any outliers for either gender?

4. What is an inference you can make by looking at this data about the average height of men
and women?

Answers

Answer:

3. Yes it is possible to fall out of the "average" high statistics. It does not make you not a man or woman, but it just means you are taller or shorter than average for your gender.

4. Men are averagely taller than women, and women are more commonly shorter than men.

hope this helps:)

!!!?!!?!?!!??!!!!!!!!!?!

Answers

Answer:

10

Step-by-step explanation:

Substitute n for 10, 11 and 13

45 - 10 = 35

45 - 11 = 34

45 - 12 = 33

The answer is ten because when substituting n for 10, the equation

35 = 45 - 10

is true

Answer:

10

Step-by-step explanation:

Check out this square pyramid
Find the surface area of the square pyramid (above) using its net (below).

Answers

Answer:

Each triangle has an area of 6 and the square in the middle has an area of 9.

6 times 4 is 24, plus 9 is 33. Therefore, your surface area is 33

SOMEONE HELP ME PLEASE!!

Answers

Answer:

The second one

Step-by-step explanation:

Dora uses a 0.35 meter length of ribbon for each bracelet she makes. She makes 4 bracelets.

Dora makes an additional 3 bracelets. how much ribbon does Dora need in total now?

Answers

Answer:

2.45

Step-by-step explanation:

0.35 x (4 + 3) = 2.45

2.45 ribbon because 0.35 x 4 = 1.4 + 0.35 x 3 = 1.05. 1.05+1.4=2.45 or 4+3=7 0.35x7=2.45

The hourly rates of a supermarket's employees are shown below. Find the median. Please show your work and include a label on your answer.

$9.25, $8.50, $22.50, $7.85, $8.85, $12.65, $10.85, $11.50

Answers

Median = the number in the middle of a set of data

So first we order the data:

7.85, 8.50, 8.85, 9.25, 10.85, 11.50, 12.65, 22.50

Now there is no exact number in the middle so we must find the number in the middle of 9.25 and 10.85 which is 10.05

Thus 10.05 is the median

Hope I helped!

Answer: Median = the number in the middle of a set of data

So first we order the data:

7.85, 8.50, 8.85, 9.25, 10.85, 11.50, 12.65, 22.50

Now there is no exact number in the middle so we must find the number in the middle of 9.25 and 10.85 which is 10.05

Thus 10.05 is the median

Step-by-step explanation: hope i helped

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

for the first one you would want to add 4y from 5y and you would have 9y so the answer would be 9y + 2 because they have different terms

for the second one the answer is 3+5+6

Step-by-step explanation:

!; what is the scale factor of the reduction? (The correct/closest answer will get brainliest)

Answers

Answer: reduction, scale factor is 4

Step-by-step explanation:

The graph of a decreasing linear function intersects the y-axis at (0, 1).
In sets of coordinates that define the function, which of these x-values would have the greatest corresponding y-value?
A
4

B
1

C
0

D
-2

Answers

Answer:

c

Step-by-step explanation:

The correct answer is D. -2

What is a function?

An expression which defines the relationship between two variables (one independent and one dependent variable).

What is dependent and independent variable?

The independent variable is the variable being controlled in the problem, and the dependent variable is the variable that changes with the change of independent variable.

What is decreasing linear function?

If the slope of the function is negative, that means the output value decreases as the input value increases is called a decreasing linear function.

How to find out which x-values would have the greatest corresponding y-value ?

Since the function is decreasing,

The y-value will decarese with the increase in value of x.

So, for the minimum value of x, there will be maximum value of y.

So, for the greatest value of y, the value of x will be -2 which is minimum of all the options.

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Find the perimeter of the window to the nearest tenth.

Answers

The formula for circumference is 2•pi•r when you do that, you get 125.6. But it is half a circle, so it is 62.8

Answer:

The formula for circumference is 2•pi•r when you do that, you get 125.6. But it is half a circle, so it is 62.8

Step-by-step explanation:

240+16/4+100+10/5+10/4+1/8 *btw needs to be a fraction*

Answers

I got 348 5/8 in my calculator, I honestly have no idea if that's what you wanted but there you go

Answer:

ITS "348 ⅝

240 + 16/4 = 244

244 + 100 = 344

344 + 10/5 = 346

346 + 10/4 = 348 ½

348 ½ + 1/8 = 348 ⅝

Step-by-step explanation:

HOPE IT'S HELP

Solve each of the following problems. Draw an illustration of each solid figure described in the problem, then write your solution and final answer on a piece of paper.

1. The base of a pyramidal tent is a square. If the tent is 2 meters long and 1 ½ meters high. How many cubic meters of space can it hold inside?

2. A cone hat has a radius of 1.3 dm and a height 4 dm. What is its volume?

3. Find the volume of a sphere whose diameter is 234 m.

4. How much space is occupied by a cylindrical capsule with a radius of 10 m and a height of 30 m.

Answers

Explanation:

Hopes this helps!!

will give brainliest if you give me the correct answer

Answers

Answer:

1st question select 2nd blue line and purple line

Step-by-step explanation:

2nd question B

Answer:1st question select 2nd blue line and purple line 2nd question B

Step-by-step explanation:

order the numbers from least to greatest
1. -7/2, -2.8, -5/4, 4/3, 1.3
2. -11/5, -2.4, 1.6, 15/10, -2.25

Answers

the numbers least to greatest

1.3 x -2.8 -5/4 4/3
1. -7/2, -2.8, -5/4, 1.3, 4/3
2. -11/5, -2.4, -2.25, 15/10, 1.6

question is below in picture.

Answers

Answer:

C. [tex]\sqrt{89}[/tex] cm

Step-by-step explanation:

First, we can start out by stating that this is a right triangle, since it has a right angle, shown by the marker square in the corner of the triangle. The x part, is called the hypotenuse. When finding the value of the hypotenuse, we use a thing called the Pythagorean Theorem. This theorem is :

a^2 + b^2 = c^2

a is one side length, and b is the other. c is the hypotenuse. To find x, the hypotenuse, we simply plug in the values, and solve.

8^2 + 5^2 = c^2

64 + 25 = c^2

89 = c^2

To get c alone, we do the square root of 89.

[tex]\sqrt{89}[/tex] = c

9.43398113 = c

So, the answer is C. [tex]\sqrt{89}[/tex] cm

Luke went shopping for a new pair of pants. The listed price of the pair of pants was $21, but the price with tax came to $22.05. Find the percent sales tax.

Answers

Answer:

5%

Step-by-step explanation:

22.05-21=1.05

1.05/21=.05

.05*100=5%

The sales tax is 5% of listed price.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given, Luke went shopping for a new pair of pants.

The listed price of the pair of pants was $21.

But the price with tax came to $22.05.

The taxed amount

= $22.05 - $21

= $1.05

To find the percentage of taxed amount:

We use the percentage formula,

let m be the required percentage.

So,

1.05 = m x 21 /100

m = 1.05 x 100 / 21

m = 105 /21

m = 5%

Therefore, taxed amount is 5% of original price.

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Find the mean score. Write your answer as a decimal.

Answers

Answer:

-3.75

Step-by-step explanation:

Answer:

-0.5

Step-by-step explanation:

First add up all numbers:

-4.25 + -3.75 + -1.5 + 0.75+ 1.5 + 4.25 = -3

Divide the answer by the number of numbers:

-3 / 6 = -0.5

factor 1/3 out of 1/3x-7/3

Answers

Answer:

To factor out -1/3 out of the expression -1/3x - 8, first divide -8 by -1/3 to get 24. Now just put 24 in the place of -8 in the original expression. Your final answer should be -1/3(x + 24). Hope this helps and have a phenomenal day!

Step-by-step explanation:

The expression for the factor, 1/3 out of the 1/3x - 7/3 is 1/3 (x - 7).

What is Factor?

A factor is a number which entirely divides another number.

Let 8 is a number, so there 2 and 4 are factors of it.

The given expression is,

1/3x - 7/3

To find the factor 1/3 out of the expression,

Take 1/3 out from the expression,

1/3 (x - 7)

The required expression is 1/3 (x - 7).

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In the figure below, AB=AC=50, AD=52, and BC=28. Determine CD.

Answers

Check the picture below, on the left side.

since the triangle ABC is an isosceles with twin sides, if we drop a line bisecting the angle at the vertex A, we end up with a perpendicular line that cuts the "base" in two equal halves, so then

[tex]\textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=\stackrel{hypotenuse}{50}\\ a=\stackrel{adjacent}{14}\\ b=opposite\\ \end{cases} \\\\\\ \sqrt{50^2 - 14^2}\implies \sqrt{2500 - 196}=b\implies \sqrt{2304}=b\implies 48=b[/tex]

as you can see in the picture in red, now let's find CD.

[tex]\stackrel{\textit{pythagorean theorem}}{\sqrt{52^2 - 48^2}=14}+CD\implies \sqrt{2704-2304}=14+CD \\\\\\ \sqrt{400}=14+CD \implies 20=14+CD\implies 6=CD[/tex]

Answer:

Step-by-step explanation:

CD= 6


Find 5he diameter of the object

Answers

Answer:

4

The formula for finding diameter by radius is...

[tex]d = 2r[/tex]

[tex]2r = 2 * r(2) = 4[/tex]

__________________________________________________________

Answer:

4

Step-by-step explanation:

Question: what is the area in square centimeters, of a circle with a diameter of 24 centimeters?
a:12 pi
b:24 pi
c:36 pi
d:144 pi

Answers

144pi

radius= 24/2=12
area of a circle= pi* radius^2
=pi*12^2
=144pi
d. 144 pi
please brainlist

HELP!Find and interpret the mean absolute deviation of the data.

Answers

Answer:

3/20 = MAD or 0.15 as a decimal

1/2= Mean or 0.5 as a decimal

Step-by-step explanation:

please help me please

Answers

Answer:

25.92

Step-by-step explanation:

The formula for the volume of a triangular prism is 1/2(b*h*l).  So, it would be 3.6 * 2.4 * 6 = 51.84. Then multiply by 1/2. 51.84 * 0.50 = 25.92 cubic cm.

ANSWER:

59.4

EXPLANATION:

2.4 x 3.6 x 1/2 = 4.32 x 2 =  8.64

3.6 x 6 = 21.6

2.4 x 6 = 14.4 x 2 = 28.8

add it up and there ya go

first correct ANSWER GETS BRAINLIEST

Answers

Answer:

10-19.99=0

20-29.99=4

30-39.99=2

40-49.99=3

50-59.99=5

60-69.99=4

Step-by-step explanation:

Look at the graph, there is no explanation.

10-19.99=0
20-29.99=4
30-39.99=2
40-49.99=3
50-59.99=5
60-69.99=4
Step-by-step explanation:
Look at the graph, there is no explanation.

What types of shapes will tessellate?

all shapes will tessellate

circles

irregular polygons

regular polygons

Answers

Answer: D

Step-by-step explanation:

Only three regular polygons (shapes with all sides and angles equal) can form a tessellation by themselves—triangles, squares, and hexagons.

factor 1/3 out of 1/3x-7/3

Answers

Answer:

I believe the answer is 1/3 times (x-7)

Step-by-step explanation:

(forgive me if im wrong)

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