Groups of adults are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they would feel comfortable in a self-driving vehicle. 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. B. No, the random variable x's number values are not associated with probabilities. C. No, the random variable x is categorical instead of numerical. D. No, not every probability is between 0 and 1 inclusive. E. No, the sum of all the probabilities is not equal to 1. A. μ = 0.9 adult(s) (Round to one decimal place as needed.) B. The table does not show a probability distribution. X 0 1 2 3 P(x) 0.363 0.447 0.167 0.023 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. A. σ= B. The table does not show a probability distribution. adult(s) (Round to one decimal place as needed.) 0 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.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Groups of adults are randomly selected and arranged in groups of three.
The random variable x is the number in the group who say that they
would feel comfortable in a self-driving vehicle. 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
1
2
3
B. No, the random variable x's number values are not associated with probabilities.
C. No, the random variable x is categorical instead of numerical.
D. No, not every probability is between 0 and 1 inclusive.
E. No, the sum of all the probabilities is not equal to 1.
A. μ = 0.9 adult(s) (Round to one decimal place as needed.)
B. The table does not show a probability distribution.
P(x)
0.363
0.447
0.167
0.023
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. 0= adult(s) (Round to one decimal place as needed.)
B. 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:Groups of adults are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they would feel comfortable in a self-driving vehicle. 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 1 2 3 B. No, the random variable x's number values are not associated with probabilities. C. No, the random variable x is categorical instead of numerical. D. No, not every probability is between 0 and 1 inclusive. E. No, the sum of all the probabilities is not equal to 1. A. μ = 0.9 adult(s) (Round to one decimal place as needed.) B. The table does not show a probability distribution. P(x) 0.363 0.447 0.167 0.023 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. 0= adult(s) (Round to one decimal place as needed.) B. 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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