The Probability of a pregnancy lasting less than 250 days is 0.1151.
Probability: - It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from 0 to 1.
Let the length of human pregnancy be denoted by X. We obtain the probability associated with this value by converting it to be standard normal ( z) score and then consulting a Z- table to find the corresponding probability.
P(x< 250) = P( x-μ /σ < 250 - 268 /15)
= P( z < -1.2)
= 0.1151
∴ The probability of a pregnancy lasting less than 250 days is 0.1151.
Learn more about Z- Table:
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