anwser all questions please The lengths of a particular animal's pregnancies are approximately normally distributed, with mean μ=267 days and standard deviation σ=20 days. (a) What proportion of...

anwser all questions please

The lengths of a particular animal's pregnancies are approximately normally distributed, with mean

μ=267

days and standard deviation

σ=20

days.

(a) What proportion of pregnancies lasts more than

292

days?

(b) What proportion of pregnancies lasts between

237

and

277

days?

232

days?

(d) A "very preterm" baby is one whose gestation period is less than

222

days. Are very preterm babies unusual?

Jun 08, 2022

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