A number cube is rolled 24 times. Whats the expected number of times a number less than 3 is rolled?

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09-04-2024
Mathematics

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A number cube is rolled 24 times. Whats the expected number of times a number less than 3 is rolled?

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shadowfaxmp shadowfaxmp · Answer 1 · 2024-04-09T04:29:36+02:00

Answer: 8

A regular number cube (dice) has six sides numbered 1-6. There are two numbers on a regular die less than 3, 1 and 2. The probability of this happening is 2/6 or 1/3. (Calculated by dividing the number of favorable outcomes by the total number of possible outcomes).

To find the expected number of times, you multiply the probability by the number of trials: [tex]\frac{1}{3}\cdot24[/tex] = 8.