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OpenStudy (anonymous):
The following table shows the probability of rolling the numbers 1 through 7 on a fair seven-sided die. X 1 2 3 4 5 6 7 P(X) 1/7 1/7 1/7 1/7 1/7 1/7 1/7 What is the standard deviation of the random variable X, "the number that comes up on the die?"
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OpenStudy (anonymous):
if anyone needs a screen shot tell me
OpenStudy (anonymous):
nevermind i got the answer. it was 2.
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