Find the indicated probability by using the complementation rule. A percentage distribution is given below for the size of families in one U.S. city. Size Percentage 2 39.9 3 24.4 4 20.1 5 10.8 6 3.3 7 1.5 A family is selected at random. Find the probability that the size of the family is 4 or more. Round results to three decimal places.
a. 0.156
b. 0.844
c. 0.357
d. 0.201

Answers

Answer 1

Answer:

The correct option is c.

Step-by-step explanation:

The percentage probability distribution is:

Size (X)      Percentage

 2                   39.9

 3                   24.4

 4                   20.1

 5                   10.8

 6                    3.3

 7                     1.5

Total             100.0

Compute the probability that the size of the family is 4 or more as follows:

P (X ≥ 4) = P (X = 4) + P (X = 5) + P (X = 6) + P (X = 7)

              = 0.201 + 0.108 + 0.033 + 0.015

              = 0.357

Thus, the probability that the size of the family is 4 or more is 0.357.

The correct option is c.


Related Questions

The school media specialist has catalogue 2/3 of the new books in a shipment. If she has catalogued 52 books, what is the total number of books in the shipment?

Answers

Answer:

78 Books

Step-by-step explanation:

To answer the problem divide 52 by 2, then take the answer(26) and multiply by 3 which leads you to the 78.

my last question someone help pls

Answers

Answer:

3

Step-by-step explanation:

A spinner is divided into eight equal-sized sections, numbered from 1 to 8, inclusive. What is true about spinning the spinner one time? Select three options. S = {1, 2, 3, 4, 5, 6, 7, 8} If A is a subset of S, A could be {1, 2, 3}. If A is a subset of S, A could be {7, 8, 9}. If a subset A represents spinning a number less than 4,then A = {1, 2, 3, 4}. If a subset A represents the complement of spinning an odd number, then A = {2, 4, 6, 8}.

Answers

Answer: A, B, and E

Step-by-step explanation:

The true statements are (A) A could be {1, 2, 3} and (B) A could be {1, 2, 3, 4}, where A  is a subset of S

How to determine the true statements?

The sample space is given as:

S = {1, 2, 3, 4, 5, 6, 7, 8}

The possible subsets of S are as follows:

Even numbers = {2,4,6,8}Odd numbers = {1,3,5,7}Any number or group from 1 to 8, inclusive

Using the above highlights, the possible set of A are:

A could be {1, 2, 3}. A = {1, 2, 3, 4}.

Hence, the true statements are (A) and (B)

Read more about spinners at:

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The formula to convert degrees Farenheit to degrees Celsius is as follows:
C(x) = 5 (x – 32)
1. Use this function to convert 68°F to Celsius.
2. The inverse of this function would be used to convert degrees Celsius to Farenheit. Use the inverse function to convert 35°C to Farenheit.
3. Verify, using a composition of functions, that the Farenheit to Celsius and Celsius to Farenheit equations are inverses of each other.​

Answers

Answer:

69 degrees farinhieght

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of gas to go 1 mile. How much gas dose the car use to 100 miles? Show your reasoning.

Answers

Answer:

um......I think 2 figure it out....

Step-by-step explanation:

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of gas to go 1 mile.

What is the slope-intercept equation of the line below?

Answers

Answer:

the answer is C hope this helps

I will give the BRAINIEST

jack works after school. Each day he earns a set amount, plus an hourly wage. Choose the linear function f Jack can use to determine his pay.​

Answers

Answer:

It's f(x)=10x+8

Step-by-step explanation:

Because it says every hour not every half hour and the graph changes by 0.5 instead of 1 so m would equal 10

Someone help me with this please

Answers

Answer:

pretty sure it's B, its just really hard to see

Step-by-step explanation:

Multiply -5/3 and -9/1

Answers

it’s 15!! hope this helps :))))
-5/3 x -9/1

Multiplying two negatives gives a positive:

5/3 x 9/1

Reduce the numbers using the greatest common factor (3):

5 x 3/1

5 x 3

15


Final answer is: 15

In fractional form: 15/1

A pool drains 5000 gallons of water over the course of 5 hours. How many gallons of water, on average, does the pool drain each hour?

A. -5000 gallons per hour
B. -1000 gallons per hour
C. -100 gallons per hour
D. 1000 gallons per hour

Answers

Answer:

D. 1000 gallons per hour

Step-by-step explanation:

5000 / 5 = 1000

Answer: If it drained 5000 gallons and there were 5 hours, then 5000 divided by 5 is 1 so that would be answer D.

Hoped this helped!

Principal=$100 rate=5% years=3 what is the interest?

Answers

Answer:

Interest would be $15 every 3 years

Step-by-step explanation:

Interest = Principal x Rate x Time

Interest = 100 x 5% x 3

Interest = 5 x 3

Interest = 15

What is 70% of 150?........

Answers

Answer:

105%

Step-by-step explanation:

I hope this helped.

Answer:

105

Step-by-step explanation:

iI just pulled up a percentage calculator...

Help please please please

Answers

A, make me the brainiest answer too pls

1a) How much does each person pay when 6 people share the cost of a meal
costing $100?

Answers

Answer:

16.66

Step-by-step explanation:

Answer:

16.6666666667

Step-by-step explanation:

you take 100 and divide it by 6 and you will get 16.6666666667 or if you round it you will get 17 dollars

Solve 4-(-h)=12!!!can someone help meee

Answers

Answer:

The answer is 8

Step-by-step explanation:

Since there's already a negative sign right beside h and one outside of it, the answer has to be positive, and since 12-4=8, the answer is 8

In a survey of a random sample of 35 households in the Cherry Creek neighborhood of Denver, it was found that 8 households turned out the lights and pretended not to be home on Halloween. Compute a 90% confidence interval for p, the proportion of all households in Cherry Creek that pretend not to be home on Halloween. (Round your answers to four decimal places.)

Answers

Answer: (0.1118, 0.3454)

Step-by-step explanation:

Confidence interval for population proportion is given by :-

[tex]\hat{p}\pm z^c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}[/tex] , where [tex]\hat{p}[/tex]= sample proportion , n= sample size, [tex]z^c[/tex] = critical z-value for c confidence level.

Let p = the proportion of all households in Cherry Creek that pretend not to be home on Halloween.

Given : n= 35

[tex]\hat{p}=\dfrac{8}{35}\approx0.2286[/tex]

Critical z-value for 90% confidence level =1.645

A 90% confidence interval for p, the proportion of all households in Cherry Creek that pretend not to be home on Halloween:

[tex]0.2286\pm (1.645)\sqrt{\dfrac{0.2286(1-0.2286)}{35}}\\\\=0.2286\pm 0.1168\\\\=(0.2286-0.1168,\ 0.2286+0.1168)\\\\=(0.1118,\ 0.3454)[/tex]

∴ Required confidence interval : (0.1118, 0.3454)

use approximations to 1 significant figure, estimate the value of
0.482x61.2²÷√98.01

Answers

Answer:

182.353745455

Answer:180

Step-by-step explanation:

Show Your Work!
Will Mark Brainliest!

Answers

Answer:

The answer is A.

Step-by-step explanation:

Hope I helped!

Answer:

y=3

Step-by-step explanation:

Since the point (2,3) has a y value of 3, the equation y = 3 is horizontal and will pass through the point (2,3). Picture is below:

rip XXXTentacion ........

Answers

Answer:

yep. he was a great rapper; one of my favorites. it's been almost 3 years now. may he rest in peace.

Step-by-step explanation:

❤️✨

What's the slope and y-intercept?
Help please!!

Answers

3.
Slope is 1
Y- Intercept is 1
4.
Slope is 4/3
Y-Intercept is -4

QUESTION 28
Use the remainder theorem to find (ONLY TYPE IN THE NUMBER!)
(4) for f(x) = -x + 8x? +63

Answers

Answer
32
Explanation
-4 + 8(4) + 63

I need this by Thursday! God Bless! anna is on a road trip, she uses 3/4 of a tank of gas every 9/2 hours. how many tanks of gas will anna use after 12 hours?

Answers

Answer:

2

Step-by-step explanation:

(3/4)/(9/2)=1/6 tank of gas used every hour.

1/6*12=2 tanks of gas used in 12 hours.

By using the unitary method we will get 2 tanks of gas will anna use after 12 hours.

What do you mean by unitary method?

The unitary method is a method of determining the value of a single unit and based on that value you can find the value for the number of units you need.

Let the volume of the tank of gas  be x units

Volume of the tank of gas  uses for  9/2 hours = 3/4 of total volume

                                                         = 3/4 x

Volume of the tank of gas uses after 1 hour = 3/4 x ÷ 9/2

                                                                         = 3/4 x × 2/9

                                                                          = x/6

Volume of the tank of gas uses after 12 hours =x/6  x× 12 = 2x

Here, 2x  shows that 2 tanks of gas will anna use after 12 hours.

Therefore , 2 tanks of gas will be used by anna.

Learn more about the unitary method from the link.

https://brainly.com/question/861311

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Evaluate with the given values

Answers

The answer is 15 definately

Brody deposited $500 into a savings account that earns 1% interest compounded annuall. He
makes no more deposits and no withdrawals. How much interest has Brody's account earned
after 2 years?

Answers

Answer:

he would get 10$

Step-by-step explanation:

if you divide 500 by 1 you get 5 times that by 2

On a test a student got 15 problems correct out of a total of 20 problems.
What percent did the student get incorrect?
HURRY

Answers

Divide 15 by 20

15 divided by 20 is 75%

Find the length of the missing side. The triangle is not drawn to scale

Answers

Answer: The answer is C (7).  

Use the Pythagorean theorem to find the missing side.

√(25^2-24^2)=7

What is the simplified version of this expression?
7(5x−1)

Answers

Answer:

35x-7

Step-by-step explanation:

I BET YOU CANT SOLVE THIS

Answers

Answer:

Step-by-step explanation:

5 x ( 9 + 4 ) = ( 5 x __ ) + ( 5 x __ )

using distributive property,

the answer is

( 5 x 9 ) + ( 5 x 4 )

if u want the final answer

it becomes

45 + 20

= 65

Hope this helps

plz mark as brainliest!!!!!!!!

what 2-7/8 divided by 3/4

Answers

Answer is 72.66666667

I hope it is helpful for you....

A baseball is thrown in a parabolic arch

Answers

cool stuff !!!!!!!! lol is that all
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