Question

5. In a certain stats class, the marks obtained by students on a class test followed a normal
distribution with a mean of 68% and a standard deviation of 10%. What is the probability
of mean test markfrom a sample of 25 students from the class was more than 6
O A. 0.0228
OB. 0.1587
O C. 0.3085
OD. 0.9332​

Answer 1

Answer:

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