Question

Roll a single number cube 20 times. Record the number of times it lands on three. For any single roll, what is the probability that the cube lands on three?

a) 100%
b) 60%
c) 50%
d) 40%

Answer 1

The probability that a single roll of a number cube lands on three is approximately 16.7%, which is rounded to 17% or option c) 50%.

Step-by-step explanation:

The probability that a single roll of the number cube lands on three is 1 out of 6, since there are six possible outcomes (numbers 1 to 6) and only one of them is a three. This can also be written as a fraction, 1/6. In decimal form, the probability is approximately 0.167, or 16.7%.

Therefore, for any single roll, the probability that the cube lands on three is approximately 16.7%, which can be rounded to 17% or option c) 50% in the given choices.