Question

PLEASE HELP!! Oliver surveyed 30 students about their favorite genre of music, out of which 12 students chose rock music.

What is the experimental probability that the next student surveyed will say rock music is their favorite genre?
A.
40%
B.
12%
C.
100%
D. 60%

Answer 1

Step-by-step explanation: on ur graph, in a class of 90 students (20 rock, 40 hip hop, and 30 country...added = 90) , 30 chose country....30/90 reduces to 1/3.....so 1/3 chose country.

In a class of 450 students......1/3 * 450 = 450/3 = 150 chose country

Answer 2

12/30 = 0.40

There is a 40% experimental probability.