Caleb surveyed students in highschool and asked them to name their favorite kind of music.

Question

Rock 50%

Country 30%

Hiphop 10%

Classical 10%

He wants to designs a simulation to estimate the probability that a randomly chosen student will choose a certain type of music as their favorite. He assigns the numbers 0-9 to the music categories and uses random number generator on his calculator.Which set of numbers could be used to represent rock music?

a. 0,1,2,3,4

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

c.1,2,3,4

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

Answer 1

Since 50% represents the number of students interested in Rock, one would want to have 50% of the numbers to represent Rock. the numbers are stated as 0-9 or 10 numbers. 50% of 10 numbers is 5 numbers. Only one answer has 5 numbers.

Answer 2

Rock has 50%, so it needs one-half of the numbers: 0, 1, 2, 3, 4