Suppose the lengths of human pregnancies are normally distributed with mu equals

ID: 3315572 • Letter: S

Question

Suppose the lengths of human pregnancies are normally distributed with mu equals 266 days and sigma equals 16 days.

(a) The figure to the right represents the normal curve with mu equals 266 days and sigma equals 16 days.

The area to theleft of Upper X = 245 is 0.0947 Provide two interpretations of this area.

Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.)

A. The probability that a randomly selected human pregnancy lasts less than ___ days is ___

B. The probability that a randomly selected human pregnancy lasts more than ___ days is ____

Answer of this question is option A.

A. The probability that a randomly selected human pregnancy lasts less than 245 days is 0.0947.

B. The probability that a randomly selected human pregnancy lasts more than 245 days is 1-0.0947=0.9053

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