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On a national exam the scores are NORMALLY DISTRIBUTED with mean=110, and standard deviation=12.,calculate the probability (proportion)that the average score for a SRS of 4SCORES

On a national exam the scores are NORMALLY DISTRIBUTED with mean=110,

and standard deviation=12.,calculate the probability (proportion)that the average score for a

SRS of 4SCORES is LESS THAN 90?

A..1056

B..2266

C..0006

D..0030

E..0004

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