If 54% of all people between the ages of 35 and 50 ride a bike, find the probability for a sample of 30 people in that age group exactly 15 ride a bike

Answers

Answer 1

Answer:

The probability is 0.1312

Step-by-step explanation:

Here, let us set up a binomial system

From the question, 54% ride a bike

Let p = people that rides a bike

54% = 54/100 = 0.54

p = 0.54

q = 1 - p = 1 -0.54 = 0.46 ( 46% do not ride bikes)

Now, for the binomial system, we have

P(X = 15) = 30 C 15 • p^15•q^15

We have;

30 C 15 * 0.54^15 * 0.46^15

= 0.131200268998

The probability is 0.1312


Related Questions

A square table in the cafeteria has the dimensions shown. What is the length of the diagonal of the table? Round to the nearest hundredth of a foot.

Answers

Answer: 11.31

Step-by-step explanation:

What is the volume of this composite solid?
4 m
6 m
10 m
6 m
O A. 372 cubic meters
B. 144 cubic meters
Ο Ο Ο Ο
O C. 600 cubic meters
D. 480 cubic meters

Answers

D. 480 cubic meters. Using the volume formula LxWxH we can find the volume of the rectangular prism on the bottom. Using the triangle area formula, we know the face of the triangle has an area of 12. Multiply this twelve by 10 and you get 120. 120+360 = 480

Answer:

its D. 480 cubic meters for Ape.x

Step-by-step explanation:

Someone help and plz make sure it’s right

Answers

the answer is b because 80+60=140, -7 and then divide by three you get 11

Answer:

x=11

Step-by-step explanation:

3x+7+60+80=180

3x+147=180

3x=33

x=11

Hope this helps :D

BTW 180 degrees is how many degrees in a triangle

Mr. Johnson sells erasers for $3 each. He sold 96 erasers last week
and he sold 204 erasers this week.

Answers

Answer:

$900

Step-by-step explanation:

He makes $288 the first week and $612 the second week the total amount of money he makes is $900

Answer:

96*3= $288 from last week

204*3= $612 from this week

The total is $900 from both weeks

Step-by-step explanation:

Hope this is what you were asking!

THE OUTSIDERS CHAPTER 9 PLEASE ANYBODY

Answers

4.D for him not to resist the arrest
5 false because they are greasers and like to fifth

A tendency to avoid putting money into high-risk investments is known as being

a.risk-adverse
b.conscientious saver c.investment-adverse
d.saver​

Answers

Answer:

a

Step-by-step explanation:

Answer:

risk-adverse

Step-by-step explanation:

The term risk-averse describes the investor who chooses the preservation of capital over the potential for a higher-than-average return.

What is the volume of the prism?
*Do NOT round your answer.

Answers

Answer:

300 in³

Step-by-step explanation:

Hello There!

The prism shown is a rectangular prism

The formula for volume of a rectangular prism is

[tex]Volume=lwh[/tex]

where l = length w = width h = height

so we are given all of the dimensions so to find the volume all we have to do is plug in the values into the formula

so

[tex]V=10*5*6\\10*5=50\\50*6=300\\V=300 in^3[/tex]

Answer:

the volume of the prism=length ×breadth ×height =10×5×6=300in³

Linear inequality systems graphically

Answers

To graph the solutions of a system of inequalities, graph each inequality and find the intersections of the two graphs.

John volunteers at the animal shelter on weekends. One Saturday, John unloaded 27 bags of dog food. Each bag weighed 35 pounds. How many ounces of dog food did John unload?

Answers

Answer:

945 ounces

Step-by-step explanation:

if you read it closley you will find that if you multiply you will get 945 ounces because all you have to do is multipply.

We need help ASAP whatever you can do is fine please and thanks!!

Answers

Answer:

Angle 1: 130

Angle 3: 130

Angle 5: 50

Angle 6:  130

Step-by-step explanation:

If angle 2 is 50, that means 4,5, and 7 are 50 as well

Also, if we know angle 2 is 50, we know 1,3,8, and 6 are 130 since a line is always 180 (so subtract 50)

Let me know if you need more help!!

In a standard 52−card deck, half of the cards are red and half are black. The 52 cards are divided evenly into 4 suits: spades, hearts, diamonds, and clubs. Each suit has three face cards (jack, queen, king), and an ace. Each suit also has 9 cards numbered from 2 to 10.


Suppose a solitaire player has played 600 games. Predict how many times the player turned over a red card as the first card.

The player can expect to turn over a red card about _____ times.

Answers

About 300 times, half of the cards are red right?

Answer:

300 times

Step-by-step explanation:

52 card deck

half are red

halfare black

Please help.... I don’t understand

Answers

Answer:

$5

Step-by-step explanation:

Set up a system of equations

let b be the cost of a bow

let w be the cost of a roll of wrapping paper

This means that

[tex]5b + w = 10\\b + w = 6[/tex]

Subtract the two equations

[tex]5b + w = 10\\- (b + w = 6)\\4b = 4\\b = 1[/tex]

Plug this into the equation b + w = 6

1 + w = 6

w = 5.

This means the cost of a bow is $1 and the cost of a roll of wrapping paper is $5.

The figure shows the graphs of the functions y = f(x) and y = g(x) . The four indicat points all have integer coordinates. If g(x) = f(x) + k, what is the value of k?

Answers

Answer is in the file below

tinyurl.com/wpazsebu

Answer:

2

Step-by-step explanation:

Can a triangle be formed with the following measurements?: 4 m, 5.1 m, 12.5 m

Answers

Answer:

no

Step-by-step explanation:

Hello There!

So in order for it to be a triangle the sum of the two shorter sides has to be greater than the longest side

4+5.1=9.1

9.1 is not greater than 12.5 therefore a triangle cannot be formed with the given measurement

solve
¾.(z to the 3rd power . 4)=

Answers

Answer:

In the number 75, 5 is the base and 7 is the exponent. Solution: False. Example 7: 4. 3 a. a a a a b. b b b. + + +. = + +. Solution:.

Would sinA 15/17 be corrrect?

Answers

Answer:

yes

Step-by-step explanation:

sinA = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{15}{17}[/tex]

HELP ASAP PLEASE I KEEP GETTING IT WRONG:(

Answers

Answer:

I think it's the amount of money Mary earns for 10 hours worked.

Step-by-step explanation:

The solution shown for the equation is incorrect. What is the correct​ solution? What is the​ error?
−9​(3−​r) = 45
−27−9r = 45
−9r = 72
r = −8

The solution is ____

Answers

-9(3-r)=45
-27+9t=45
9r=45+27
R=72/9
R=8
The answer is 8 not -8

HHHHHHHHHEEEEEEEEEELLLLLLLLLLPPPPPPPPP ILL FAIL MY CLASSSSSSSSSSSSSS


for number 4 because it has select, the select are


first one under C) 66, 64, 67, 65

under B) 24, 23, 26, 25

under A) 15, 16, 17, 18

lowest under C) 40, 41, 42, 39

.

.

.

.

.

.

.

.

..

also this one: Which of the following represents a Pythagorean Triple?

Group of answer choices


{21, 72, 75}


{11, 45, 60}


{5, 7, 10}


{10, 20, 30}

Answers

Answer:

I think the answer is {10,20,30} but please check it

Answer:

I only know the first one for right now and the answer is 17

Step-by-step explanation:

You got to find the value of x in the figure

To do that, you have to apply Pythagorea theorm: hyp^2=a^2+b^2. where a and b are legs of the triangle. Hyp=hypotenuse. So in conclusion you have this: x^2=8^2+15^2

x^2=64+225

x^2=289

Then it's x= 289 like this

[tex] \sqrt{289} [/tex]

Which gives you the answer 17

Let me know if this helps

find the value of 2\5of rs75​

Answers

Step-by-step explanation:

Given

[tex] \frac{2}{5} \times rs75 \\ = rs \: 15 \times 2 \\ = rs \: 30[/tex]

Hope it will help :)

Answer:

2÷5×75=30

Step-by-step explanation:

PLEASE HELP MARKING BRAINIEST

Answers

Answer:

B 2

Step-by-step explanation:

Because the leading term makes the difference on whether a parabola opens upward or downward.

If the leading coefficient of the leading term (which is 2) is negative it opens downward. If it is positive like it is in the equation then it opens upward.

Hope that helps :)

What is the value of h in the triangle below?​

Answers

Answer:

2

Step-by-step explanation:

That side has to be smaller than 3 since it’s the length of the bigger triangle side making 2 the only possible answer because it’s the smallest answer.

Right answer gets brainlist right answer gets brainlist

Answers

Answer:

There's no question.

Step-by-step explanation:

An athlete consumed 4,000 calories yesterday. Today, she consumed 3,800 calories. What is the percent change in number of calories consumed. Was this a percent increase or decrease? Round to the nearest percent.

Answers

It is a 200% decrease.

SOMEONE PLS HELP I HAVE LIKE A MINUTE LEFT!!!

Answers

Answer:

C

Step-by-step explanation:

I'll explain if you need but i'm trying to answer quick for you

Answer:

C

Step-by-step explanation:

3500(1.04)^15

6,303

so in 15 years it will be over 6,000 dollars in the account

[tex]x^{2} -x-6[/tex]

Answers

Answer:

1. (x-3)(x+2)

2. (x-5)(x-3)

3. x= 2,1

4. x= -2,-4

5. x= 3,-7

6. x= 1,-8

7. x= 5,-7

8. x= -1/3,-2

Step-by-step explanation:

100 PTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
The width of a rectangular field is represented by x. The length of the rectangle is 5 more feet than the width. The total area of the field is 24 square inches. Write an equation to represent the area of the rectangle.

Answers

Answer:

24 ÷ x = 5

i hope this helps :)

Answer:

It is 24 ÷ x = 5

Step-by-step explanation:

What is the area? Please help

Answers

Answer:

24 hhbhbbb;bbbbhhhjjjjdjdhdbdbbdbdhd

Answer: 61

Area of Square = [tex]7^{2}[/tex]

7 x 7 = 49

Area of Triangle = 1/2 (4) (3)

1/2 (4) (3) = 6

49 + 6 + 6 = 61

50.6 is what percent of 55?
50.6 is % of 55.

Answers

Answer:

50.6 is 92% of 55

Step-by-step explanation:

50.6:55*100 =

(50.6*100):55 =

5060:55 = 92

Now we have: 50.6 is what percent of 55 = 92

Hope this helped!

5. A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume of 320pi cubic feet. What is the diameter, in feet, of the water tank? ​

Answers

Answer:

8 ft.

Step-by-step explanation:

V = Bh        B = area of the base           h = height

The base is a circle, so [tex]B = \pi r^{2}[/tex]

320π = [tex]\pi r^{2} (20) = 20\pi r^{2}[/tex]

[tex]r^{2} = \frac{320\pi }{20\pi } = 16[/tex]

r = 4

d = 8 ft.

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