Mathematics, 18.01.2020 04:31 jxcxhxwxll
The question is: the iqs of 9 randomly selected people are recorded. let y(bar) denote their average.
assuming the distribution from which the yi's were drawn is normal with a mean of 100 and a standard deviation of 16, what is the probability that y(bar) will exceed 103?
what is the probability that any arbitrary yi will exceed 103?
what is the probability that exactly 3 of the yi's will exceed 103?
Answers: 3
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