Use the contingency table to the right to calculate the marginal frequencies and find the expected frequency for each cell in the contingency table. Assume that the variables are independent.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Use the contingency table to the right to calculate the marginal frequencies and find the expected frequency for each cell in the contingency table. Assume that the variables are independent.
 
Athlete has
 
Result
Stretched
Not stretched
 
Injury
18
30
 
No injury
208
186
 
 
 
 

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Part 1
​(a) Calculate the marginal frequencies and sample size.
 
 
Athlete has
 
Result
Stretched
Not stretched
Total
Injury
18
30
 
No injury
208
186
 
Total
     
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