MAT 211 Lecture Notes - Lecture 25: Probability Distribution, Standard Deviation, Probability Density Function
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The following table provides a probability distribution for the random variable x.
x | f(x) |
3 | .25 |
6 | .50 |
9 | .25 |
a. Computer E (x), the expected value of x.
b. computer , the variance of x .
c. Computer the standard deviation of x.