10 soldiers of 500 attempt to climb a 100Ft cliff, they fail in : 57 ft, 73, 81, 78,63,85,41,68,75,88. What is probability of soldiers successfully climbing the cliff?

Answer 1

Calculate mean and standard deviation.

Z = (score - mean)/SD = (100-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the smaller proportion related to your Z score.

Answer 2

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