The scores on a psychology exam were normally distributed with a mean of and a standard deviation of . About what percentage of scores were less than . The percentage of scores that were less than was

Complete Question

The scores on a psychology exam were normally distributed with a mean of 59 and a standard deviation of 6. About what percentage of sores were less than 53. The percentage of scores that were less than 53 was %. (Type an integer or a decimal.

The value is

Step-by-step explanation:

From the question we are told that

   The mean is  

    The standard deviation is

Generally the percentage that were less than 53 is mathematically represented as

=>    

Generally the probability of (Z <  -1  ) is  

=>        

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