one is asked to say a two digit number. what is the probability of it being a perfect square
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No. of two digit numbers=90
No. of two digit numbers which are perfect square=6
Probability that the number is a perfect square=6/90=1/15
No. of two digit numbers which are perfect square=6
Probability that the number is a perfect square=6/90=1/15
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Given,
Total 2 digit numbers = 100
To Find,
The probability of it being a perfect square =?
Solution,
2-digit numbers are between 11 to 99
Numbers that are perfect square between 11 - 99 = 16, 25, 36, 49, 64, 81
Probability of getting a perfect square = Favourable outcomes /Total observations.
Probability of getting a perfect square = 6 / 100
Probability of getting a perfect square = 3 / 50
Hence, the probability of it being a perfect square from a two-digit number is 3/50.
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