solutions_-_probability__stats_review_a1.pdf

# Sketch a i normal curve for the distribution 2ih 3

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days. Sketch a ^,-. i . normal curve for the distribution. 2iH *3?& 'ifeto 2X1 b) What percentage of pregnancies are between 234 and 282 days? (/i IN *r* \ "~ I C"? I &* ^ J I \ i £ **4 r\\ //I c) What percentage of pregnancies are between ^66^and 298 days? . - d) The shortest 16% of the pregnancies are under how many days long?* k<^ rten 2_6 0 Jail S j ^_______ j ____ I.1II1IIIIIIIII _______ .„•««!»«*«•*«" <•"• """"•"•"•^y*'*" 1 ™™*™* e) What percentage of pregnancies are greater than 234 days? to - LZ^lj!il roximatel f) In a group of 1500 women who had babies approximately how many of the pregnancies were between 234 and 266 days? /i^lST Visaed % 71? .ST g) In a group of 1500 women who had babies approximately how many of the pregnancies were over 234 days? . h) In a group of 1500 women who had babies approximately how many of the pregnancies were less than 282 days? £tq)(iOTeJ) ^ i) In a group of 480 pregnant women, how many would you expect to have a pregnancy over 266 days?
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