MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A sociologist randomly selects single adults for different groups of​ three, and the random variable x is the number in the group who say that the most fun way to flirt is in person. 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  y
0 0.091
1 0.346
2 0.397
3 0.166
 
The probability of exactly 2 people out of 3 saying that the most fun way to flirt is in person is _____
 
The probability of 2 or fewer people out of 3 saying that the most fun way to flirt is in person is______
 (round to three decimal places as needed)
 
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