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Chapter 13: Q. 42 (page 865)

Two fair dice are rolled.

Determine the probability that the sum of the two dice is 11.

Short Answer

Expert verified

The probability is118

Step by step solution

01

Step 1. Given Information

The given statement is the sum of the two dice is 11.

02

Step 2. Calculation 

The probability of an event is given by the number of ways the event can occur divided by the total number of outcomes in the sample space.

When two dice are rolled sample space is given by n(S)=36that is total number of elements in the sample space.

Let E represent the event 'the sum of two dice is 11' that isn(E)=2

On substituting the values in the formula, we get,

P=n(E)n(S)=236=118

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