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A single six-sided die is rolled twice. What is the probability of rolling a 1 on the first roll and a 1 on the second roll?

Answer 1

Abigail Allen

#1/36#

The probability of rolling any number on a die is #1/6#

#P(1,1) = P(1) xxP(1) = 1/6 xx1/6 = 1/36#

You can work this out without using formulae at all.

There are #36# possible combinations of numbers from rolling a die twice.

There is only one way to get a double #1#

#P(1,1) = 1/36#

The probability is the same for any double ....

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Answer 2

Avery Alexander

The probability of rolling a 1 on the first roll and a 1 on the second roll of a six-sided die is ( \frac{1}{6} \times \frac{1}{6} = \frac{1}{36} ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.