In the following probability distribution, the random variable x represents the number of activities a parent of a 6th- to 8th-grade student is involved in. Complete parts(a) through (f) below.124P(x)0.2510.2210.2660.1910.071(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is 1 and each probability is between 0 and 1, inclusive.(b) Graph the discrete probability distribution. Choose the correct graph below.O A.В.C.D.0.5-0.5-0.5-0.5-0.4-0.4-0.4-0.4-0.3-0.3-0.3-0.3-0.2-0.2-0.2-0.2- 10.1-0.1-0.1-0.1-0-0-0-1313133(c) Compute and interpret the mean of the random variable x.The mean is activities.(Type an integer or a decimal. Do not round.)

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Description: In the following probability distribution, the random variable x represents the number of activities a parent of a 6th- to 8th-grade student is involved in. Complete parts(a) through (f) below.124P(x)0.2510.2210.2660.1910.071(a) Verify that this is

sum of probability is always 1 .

Answered: (c) Compute and interpret the mean of…

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(c) Compute and interpret the mean of the random variable x. The mean is |activities. (Type an integer or a decimal. Do not round.)

MATLAB: An Introduction with Applications

6th Edition

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Topic Video

Question

In the following probability distribution, the random variable x represents the number of activities a parent of a 6th- to 8th-grade student is involved in. Complete parts
(a) through (f) below.
1
2
4
P(x)
0.251
0.221
0.266
0.191
0.071
(a) Verify that this is a discrete probability distribution.
This is a discrete probability distribution because the sum of the probabilities is 1 and each probability is between 0 and 1, inclusive.
(b) Graph the discrete probability distribution. Choose the correct graph below.
O A.
В.
C.
D.
0.5-
0.5-
0.5-
0.5-
0.4-
0.4-
0.4-
0.4-
0.3-
0.3-
0.3-
0.3-
0.2-
0.2-
0.2-
0.2- 1
0.1-
0.1-
0.1-
0.1-
0-
0-
0-
1
3
1
3
1
3
3
(c) Compute and interpret the mean of the random variable x.
The mean is activities.
(Type an integer or a decimal. Do not round.)

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K Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant C 242 36 A 329 30 B 274 57 D Order Accurate 146 Order Not Accurate 10 If one order is selected, find the probability of getting an order from restaurant B or D or an order that is not accurate. The probability of getting an order from restaurant B or D or an order that is not accurate is (Round to three decimal places as needed.)