The following table cross-classifies pregnant women in the study by their body mass index (BMI) at 16 weeks gestation and whether they had pre-term delivery. What is the probability of women with BMI less than 30 and delivers pre-term?   BMI < 30 BMI 30–34.9 BMI 35+ Pre-term 320 80 120 Full term 4700 480 300 A)0.0867 B)0.2857 C)0.0533 D)0.533

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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The following table cross-classifies pregnant women in the study by their body mass index (BMI) at 16 weeks gestation and whether they had pre-term delivery. What is the probability of women with BMI less than 30 and delivers pre-term?

 

BMI < 30

BMI 30–34.9

BMI 35+

Pre-term

320

80

120

Full term

4700

480

300

A)0.0867

B)0.2857

C)0.0533

D)0.533

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