SOLUTION: A normal distribution has a mean of 10 and a standard deviation of 2. Find the probability that a randomly selected x-value is in the interval between 8 and 12.
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Question 450041: A normal distribution has a mean of 10 and a standard deviation of 2. Find the probability that a randomly selected x-value is in the interval between 8 and 12. Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! A normal distribution has a mean of 10 and a standard deviation of 2. Find the probability that a randomly selected x-value is in the interval between 8 and 12.
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one std dev from 10 is
low value:10-2 = 8
high value: 10+2 = 12
So, if it is one standard deviation the probability is 68%
Note: I meant 68% not 98%!!
