A die is loaded so that the number 6 comes up three times as often as any other number. what is the probability of rolling a 1 or a 6?

Question

Mathematics

Casey Chase

20 May, 08:01

A die is loaded so that the number 6 comes up three times as often as any other number. what is the probability of rolling a 1 or a 6?

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Answers (1)

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Pablo Espinoza · Answer 1

1/2.

Step-by-step explanation:

Probability totals must add up to 1.

P = probability.

If P (any number other than 6) = x, then P (6) = 3x, so

3x + 5x = 1

x = 1/8

P (6) = 3/8 and P (not 6) = 1/8

Therefore P (6 or 1) = 3/8 + 1/8 = 1/2 (answer).