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Concept explainers
To make a two way frequency table to display the data.
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Answer to Problem 42PFA
Explanation of Solution
Given information:
Total classmates are 150
48% involved in band
25% involved in both
18% not involved in both
Formula used:
Calculation:
Total classmates P(b U s)=100%
Classmates in band P(b)=48%
Classmates in sports P(s)=?
Classmates in both
Classmates not in both=18%
Using formula to calculate Classmates in sports P(s)
100%=48%+P(s)-25%
P(s)=77%
Classmates only in band=48%-25%=23%
Classmates only in sports=77%-25%=52%
Putting all the values in two way frequency table:
Chapter 10 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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