Solve the problem.
-The scores on a certain test are normally distributed with a mean score of 51 and a standard deviation of 2. What is the probability that a sample of 90 students will have a mean score of at least 51.2108?
A)0.1587
B)0.3174
C)0.3413
D)0.8413

Question

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The Answer of Solve the problem.
-The scores on a certain test are normally distributed with a mean score of 51 and a standard deviation of 2. What is the probability that a sample of 90 students will have a mean score of at least 51.2108?
A)0.1587
B)0.3174
C)0.3413
D)0.8413

Solve the Problem. -The Scores on a Certain Test Are Normally Distributed with Normally