The faces of a twelve-sided die are numbered with the numbers 1 through 12. If you roll this die 600 times, how many nines do you expect to roll?
A)about 67
B)about 50
C)about 60
D)about 100
E)none

Question

The faces of a twelve-sided die are numbered with the numbers 1 through 12. If you roll this die 600 times, how many nines do you expect to roll? ​
A)about 67
B)about 50
C)about 60
D)about 100
E)none

Quizplus · Accepted Answer

The expected value for any specific outcome of a twelve-sided die is the total number of rolls divided by the number of faces. Therefore, $600 \div 12 = 50$.

The Faces of a Twelve-Sided Die Are Numbered with the Numbers