Vähäble 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. X P(x) 0 0.106 1 0.359 2 0.393 3 0.142 FTTT LINH

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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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.
X
0
123
P(x) O
0.106
0.359
0.393
0.142
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. X 0 123 P(x) O 0.106 0.359 0.393 0.142
Does the table show a probability distribution? Select all that apply.
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, the random variable x is categorical instead of numerical.
E. No, not every probability is between 0 and 1 inclusive.
Find the mean of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A.
μ= students
(Round to one decimal place as needed.)
OB. The table does not show a probability distribution.
Find the standard deviation of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Transcribed Image Text:Does the table show a probability distribution? Select all that apply. 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, the random variable x is categorical instead of numerical. E. No, not every probability is between 0 and 1 inclusive. Find the mean of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. μ= students (Round to one decimal place as needed.) OB. The table does not show a probability distribution. Find the standard deviation of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
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