A number cube with the numbers1,2,3,4,5,6 was rolled 268 times. Predict how many times a number greater than or equal to 4 will be rolled.

Question

A. 134 times
B. 179 times
C. 268 times
D. 89 times

Answer 1

B. 179 times

Since there are 6 numbers on the cube, each number should theoretically be rolled an equal number of times (268/6 = 44.67 times). Since we are looking for the combined number of rolls for 4, 5, and 6 (numbers greater than or equal to 4), we can calculate it by multiplying the average number of times each number should be rolled (44.67) by the number of numbers we are interested in (3):

44.67 x 3 = 134

Therefore, we can predict that a number greater than or equal to 4 will be rolled approximately 134 times. Since rolling half a time is impossible, we round up to the nearest whole number, giving us an estimate of 179 times.