Mathematics, 05.12.2019 09:31 100888
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.9 days and a standard deviation of 2.1 days. what is the 85th percentile for recovery times?
Answers: 1
such that
percentile is the top 
of the distribution.
to a random variable 
with the standard normal distribution using
is the mean of 
is the standard deviation of 
is used to denote the z-score corresponding to the cutoff time 
. So,
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