Asked by sofia
Twenty thousand students in your state took the ACT test. On the math portion the mean was 21
and the standard deviation was 5. If the scores resulted in a normal distribution, how many students scored at
least 16?
and the standard deviation was 5. If the scores resulted in a normal distribution, how many students scored at
least 16?
Answers
Answered by
oobleck
16 is 1 std below the mean.
So what does your Z table say about that?
So what does your Z table say about that?
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