Question

In: Statistics and Probability

Question 9 Favorite Type of Music           Frequency                       What proportion of

Question 9

  1. Favorite Type of Music           Frequency                       What proportion of this

Rock and Roll                            47                                population likes Classical

Classical                                    15                                best?

Country/Western                       39

Easy Listening                           19

Total                                        120

.099

.113

.125

.188

3 points

Question 10

  1. Favorite Type of Music           Frequency                       What is the ratio of Country & Western

Rock and Roll                            47                                music lovers to Classical

Classical                                    15                                   music lovers?

Country/Western                       39

Easy Listening                           19

Total                                        120

.38

.41

1.55

2.6

Question 11

  1. Favorite Type of Music           Frequency                       What percentage of this

Rock and Roll                            47                                population likes Rock and Roll

Classical                                    15                                best?

Country/Western                       39

Easy Listening                           19

Total                                        120

.391%

.609%

39.1%

55.2%

Solutions

Expert Solution

Solution:

Given:

Favorite Type of Music    Frequency
Rock and Roll 47
Classical 15
Country/Western 39
Easy Listening 19
Total 120

Part a)   

What proportion of this population likes Classical best?

The proportion of this population likes Classical best = 15 / 120

The proportion of this population likes Classical best = 0.125

Part b)  

What is the ratio of Country & Western music lovers to Classical music lovers?

Ratio of Country & Western music lovers to Classical music lovers = 39 / 15

Ratio of Country & Western music lovers to Classical music lovers = 2.6

Part c)

What percentage of this population likes Rock and Roll best?

The percentage of this population likes Rock and Roll best = 47 / 120

The percentage of this population likes Rock and Roll best = 0.3916667

The percentage of this population likes Rock and Roll best = 39.17%

The percentage of this population likes Rock and Roll best = 39.2%

Closest answer is 39.1%

thus correct answer is: 39.1%

orchestra answered 1 year ago
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