A fair die is rolled 30 times. How many times would you expect a 2 or a 6 to be rolled? n

Question

Mathematics

Orion Klein

28 November, 12:45

A fair die is rolled 30 times. How many times would you expect a 2 or a 6 to be rolled? n

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Answers (2)

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India Pennington · Answer 1

At least 10 or 5 times.

Explanation: 2 and 6 gives a 2/6 chance of landing on these numbers when rolled once but if it rolled 30 times, the chance would be 60/180 which means that it should be expected to have landed on either of those numbers at least 10 or 5 times.

Violet Huerta · Answer 2

6 sides on a die:

6*5 = 30

5*2 (2 is both numbers) = 10

Probability = 2/6 so 5*2 = 10

10