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The values that a discrete random variable, X, can take are 1,2,3,4 with the probabilities 0.19,...

The values that a discrete random variable, X, can take are 1,2,3,4 with the probabilities 0.19, 0.22, 0.21, 0.38 respectively. Find the mean and variance of the probability distribution.

Group of answer choices

2.58, 1.10

2.78, 1.34

2.61, 1.04

2.61, 1.10

Math   Statistics-And-Probability   
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