Question

Caleb surveyed students in his high school and ask them to name their favorite kind of music. The results are shown.

He wants to design a simulation to estimate the probability that a randomly chosen student will choose a certain type of music as their favorite. Yeah signs the numbers zero through nine to the music category and uses a random number generator on his calculator. Which set of numbers could be used to represent rock music?



A. 0,1,2,3,4


B. 1,2,3,4


C. 0,1,2,3,4,5


D. 1,2,3,4,5,6

Answer 1

Option A. 0,1,2,3,4

Explanation:

The rest of the question is the results of survey, the results is as following:

Rock 50%

Country 30%

Hiphop 10%

Classical 10%

Solution:

Caleb signs the numbers zero through nine to the music category and uses a random number generator on his calculator.

So, the number of digits from 0 to 9 = 10

Since 50% represents the number of students interested in Rock, So, he want to have 50% of the digits to represent Rock.

50% of 10 numbers is 5 numbers.

So, The option which has 5 digits is option A. 0,1,2,3,4