Question

The table shows the number of students in a school who like rap and/or hip-hop:

Like Rap Do Not Like Rap Total
Like Hip-Hop 35 8 43
Do Not Like Hip-Hop 10 21 31
Total 45 29 74


What is the relative frequency, by row, of students who do not like rap or hip-hop?
0.17
0.68
0.72
0.81

Answer 1

The correct answer would be 0.68. I just took the test, your welcome :)

Explanation:

Answer 2

The relative frequency, by row, of students who do not like rap or hip-hop is:

0.68

Explanation:

Like Rap Do Not Like Rap Total

Like Hip-Hop 35 8 43

Do Not Like Hip-Hop 10 21 31

Total 45 29 74

The relative frequency by row of an outcome is calculated as the ratio of the frequency corresponding to the outcome to the total of the row.

Total of a row is: 31

The number of students who did not like Rap or Hip-Hop is: 21

Hence, the relative frequency is: 21/31=0.6777

which is approximately equal to 0.68