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 proportion of women with BMI greater than 35 delivers pre-term? BMI < 30 BMI 30–34.9 BMI 35+ Pre-term 320 80 120 Full term 4700 480 300
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 proportion of women with BMI greater than 35 delivers pre-term? BMI < 30 BMI 30–34.9 BMI 35+ Pre-term 320 80 120 Full term 4700 480 300
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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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 proportion of women with BMI greater than 35 delivers pre-term?
|
BMI < 30 |
BMI 30–34.9 |
BMI 35+ |
Pre-term |
320 |
80 |
120 |
Full term |
4700 |
480 |
300 |
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Solution:
BMI < 30 | BMI 30-34.9 | BMI 35+ | Row Total | |
Pre term | 320 | 80 | 120 | 520 |
Post term | 4700 | 480 | 300 | 5480 |
Column Total | 5020 | 560 | 420 | 6000 |
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