what is the probability that the sample height is 65 given a mean of 64.4 and standard
Deviation of 2.74 and a sample of 70
First compute sample deviation. It is 2.74/sq. rt 70 = 0.3274.
z score =. sample height-mean/sample deviation
=. 65 - 64.4/0.3274. =0.6/0.3274
Refer to z score table that gives the probability for a z score higher than 1.83 is 1.00 - o.9664
Therefore the required probability is 0.0336.
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