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The patient recovery time from a particular surgical procedure is normally distributed with a mean of...

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 3 days and a standard deviation of 1.5 days. Let X be the recovery time for a randomly selected patient. Round all answers to 4 decimal places where possible.

b. What is the median recovery time?

c. What is the Z-score for a patient that took 4.8 days to recover?   

d. What is the probability of spending more than 4 days in recovery?

e. What is the probability of spending between 2.8 and 3.4 days in recovery?   

f. The 70th percentile for recovery times is    days.

Math   Statistics-And-Probability   
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