Question

A six-sided number cube is to be rolled 30 times. How many times do you expect to roll on an even number?

__ times

Answer 1

[AI-generated answer — Bot GPT 3.5]

On a standard six-sided number cube, there are 3 even numbers (2, 4, 6) out of 6 total numbers.

Therefore, the probability of rolling an even number on one roll is 3/6 = 1/2.

To find the expected number of times you would roll an even number in 30 rolls, you would multiply the probability of rolling an even number on one roll by the number of rolls:

1/2 x 30 = 15 times

Therefore, you would expect to roll an even number 15 times in 30 rolls.