SOLUTION: Find the mean and standard deviation of the following discrete random variable. Number of siblings: X| 1 2 3 4 5 Probability P(X=x): |0.200| 0.425| 0.275|0.075|0.025 1 goe

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: Find the mean and standard deviation of the following discrete random variable. Number of siblings: X| 1 2 3 4 5 Probability P(X=x): |0.200| 0.425| 0.275|0.075|0.025 1 goe      Log On

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Question 137562: Find the mean and standard deviation of the following discrete random variable.
Number of siblings: X| 1 2 3 4 5
Probability P(X=x): |0.200| 0.425| 0.275|0.075|0.025
1 goes on top 0.200 2 goes on top 0.425 etc.
Answer by stanbon(48569) About Me  (Show Source):
You can put this solution on YOUR website!
Find the mean and standard deviation of the following discrete random variable.
Number of siblings: X| 1 2 3 4 5
Probability P(X=x): |0.200| 0.425| 0.275|0.075|0.025
---------------------------
mean = 2.3
stdev = 0.953939...
Cheers,
Stan H.