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?"

Question

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?"

anonymous · Answer

if anyone needs a screen shot tell me

anonymous · Answer

nevermind i got the answer. it was 2.