Question
The average score for a water safety instructor (WSI) exam is 75 with a standard deviation of 12. Fifty scores for the WSI exam are
The average score for a water safety instructor (WSI) exam is 75 with a standard deviation of 12. Fifty scores for the WSI exam are randomly selected. Find the probability that the average of the fifty scores is at most 71. Give your answer to4 decimal places.
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Stochastic Calculus And Applications
Authors: Samuel N Cohen, Robert J Elliott
2nd Edition
1493928678, 9781493928675
