Question
Find the variance and standard devitation of the probability distribution of the random variable X, which can take only the values 3, 5, and 7,
Find the variance and standard devitation of the probability distribution of the random variable X, which can take only the values 3, 5, and 7, given that P(3)= 7/30,P(5)=1/3, and P(7)=13/30.
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Basic College Mathematics With Early Integers
Authors: Marvin L Bittinger, Judith A Beecher
3rd Edition
0321922794, 9780321922793
