A survey was conducted asking 600 people their favorite genre of book. The table shows the number of people who preferred four possible genres: Adventure, Comedy, Mystery, and Romance. Part a asks how many people surveyed responded with a genre that is not listed in the table. Part b asks to find the probabilities of each genre response, including "other genre" and complete a probability model.

Probability and StatisticsProbabilityStatisticsData AnalysisFrequency Distribution
2025/3/26

1. Problem Description

A survey was conducted asking 600 people their favorite genre of book. The table shows the number of people who preferred four possible genres: Adventure, Comedy, Mystery, and Romance. Part a asks how many people surveyed responded with a genre that is not listed in the table. Part b asks to find the probabilities of each genre response, including "other genre" and complete a probability model.

2. Solution Steps

a. First, we need to find the total number of people who preferred the genres listed in the table.
TotalListed=Adventure+Comedy+Mystery+RomanceTotalListed = Adventure + Comedy + Mystery + Romance
TotalListed=90+102+150+132=474TotalListed = 90 + 102 + 150 + 132 = 474
Next, we subtract the number of people who preferred the genres listed from the total number of people surveyed to find the number of people who preferred a genre not listed.
Other=TotalSurveyedTotalListedOther = TotalSurveyed - TotalListed
Other=600474=126Other = 600 - 474 = 126
b. To find the probability of each genre, we divide the number of people who preferred that genre by the total number of people surveyed.
P(Adventure)=90600=320=0.15P(Adventure) = \frac{90}{600} = \frac{3}{20} = 0.15
P(Comedy)=102600=17100=0.17P(Comedy) = \frac{102}{600} = \frac{17}{100} = 0.17
P(Mystery)=150600=14=0.25P(Mystery) = \frac{150}{600} = \frac{1}{4} = 0.25
P(Romance)=132600=1150=0.22P(Romance) = \frac{132}{600} = \frac{11}{50} = 0.22
P(Other)=126600=21100=0.21P(Other) = \frac{126}{600} = \frac{21}{100} = 0.21

3. Final Answer

a. 126 people surveyed responded with a genre that is not listed in the table.
b.
P(Adventure) = 0.15
P(Comedy) = 0.17
P(Mystery) = 0.25
P(Romance) = 0.22
P(Other) = 0.21

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