Answer:
The percentage of the students who completed the poll preferred rock and roll music.
P(RR) = 0.1423 = 14.23 %
Explanation:
Explanation:-
Given total number of students n(S) = 1960
Given the Students at a high school were polled to determine the type of music they preferred.
Rap 916
Alternative 46
Rock and Roll 279
Country 183
Jazz 32
Other 89
Let ' RR' be the event of Rock and Roll preferred music
given Rock and Roll = 279
n( RR) = 279
The percentage of the students who completed the poll preferred rock and roll music.
![P(RR) = (n(RR))/(n(s)) = (279)/(1960)](https://img.qammunity.org/2021/formulas/mathematics/college/oiaxd7yfhbv9savgcxdp7k9vwyvo6ymr10.png)
P(RR) = 0.1423 = 14.23 %