SOLUTION: The scores on a psychology exam were normally distributed with a mean of 57 and a standard deviation of 8 . About what percentage of scores were less than 49
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Question 1155516: The scores on a psychology exam were normally distributed with a mean of 57 and a standard deviation of 8 . About what percentage of scores were less than 49 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! This is an estimate problem
49 is 1 sd less tha 57
About 34 % of the curve is between 49 and 57
50% of the curve is to the left of 57 (or less than)
so the answer is 16%.
