College students are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they take one or more online courses. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. Does the table show a probability distribution? Select all that apply. ㅁㅁ A. Yes, the table shows a probability distribution. B. No, the numerical values of the random variable x are not associated with probabilities. C. No, the sum of all the probabilities is not equal to 1. D. No, not every probability is between 0 and 1 inclusive. E. No, the random variable x is categorical instead of numerical. x P(x) 0 0.105 1 0.351 2 0.395 3 0.149
College students are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they take one or more online courses. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. Does the table show a probability distribution? Select all that apply. ㅁㅁ A. Yes, the table shows a probability distribution. B. No, the numerical values of the random variable x are not associated with probabilities. C. No, the sum of all the probabilities is not equal to 1. D. No, not every probability is between 0 and 1 inclusive. E. No, the random variable x is categorical instead of numerical. x P(x) 0 0.105 1 0.351 2 0.395 3 0.149
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:College students are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they take one or more online courses.
Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the
requirements that are not satisfied.
Does the table show a probability distribution? Select all that apply.
ㅁㅁ
A. Yes, the table shows a probability distribution.
B. No, the numerical values of the random variable x are not associated with probabilities.
C. No, the sum of all the probabilities is not equal to 1.
D. No, not every probability is between 0 and 1 inclusive.
E. No, the random variable x is categorical instead of numerical.
x
P(x)
0
0.105
1
0.351
2
0.395
3
0.149
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