X 2 3 5
P(X) 0.2 0.6
1. What is the missing probability that corresponds if x=3? A. 0.4 C. 0.2
B 0.3 D. 0.1 2. Calculate the mean of probability distribution.
A.1 C. 3
B.2 D. 4 3. Find the variance of the probability distribution. A. 1.6 C. 3.6 B. 2.6 D. 4.6
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