Question

A number cube is labeled 1-6 is rolled 200 times. Numbers 1-4 are rolled 137 times and numbers 5 and 6 are rolled the rest of the time. What is the theoretical probability of rolling a number 1-4 with this number.

A. 66.67%
B. 33.7%
C. 25%
D. 50%

Answer 1

No matter the number of times you rolled the dice, the probability of getting a number is always 1/6. But here we can choose 4 numbers ( 1 to 4) hence the probability P( 1 or 2 or 3 or 4) = 4/6 2/3 = 0.6667 = 66.67% (A)