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Mathematics · Probability · NCERT Examples

Example 5

A complete, independently verified solution for NCERT Example 5.

Mathematics · Chapter 14 · NCERT Examples

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NCERT Example

Example 5

complementary events · tennis

Sangeeta and Reshma play a tennis match. The probability that Sangeeta wins is 0.62. Find the probability that Reshma wins.

Solution

Board-exam working:

Exactly one of the two players wins, so their winning events are complementary.

P(R)=1−P(S)P(R)=1-P(S)
P(R)=1−0.62=0.38P(R)=1-0.62=0.38

Final answer

P(Reshma wins)=0.38\boxed{P(\text{Reshma wins})=0.38}