Suppose that the weights of a group of student are normally distributed with a mean equal to 190 pounds and standard deviation

Question

Suppose that the weights of a group of student are normally distributed with a mean equal to 190 pounds and standard deviation equal to 20. What is the probability of a random student weighing more than 170 pounds? 
0.16
0.34
0.68
0.84

Kunduz · Accepted Answer

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