Asked by Adonis
Suppose a certain entrance exam has scores that are normally distributed with a mean score of 78 and a standard deviation of 7. What is the probability that a randomly selected student scores higher than 75 on the exam?
Answers
Answered by
oobleck
well, 75 is 3/7 σ below the mean
so run to your Z table and see what it says.
so run to your Z table and see what it says.
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