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A number x is selected at random from th...

A number x is selected at random from the numbers 1, 4, 9, 16 and another number y is selected at random from the numbers 1, 2, 3, 4. Find the probability that the value of xy is more than 16.

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`(1, 1), (1, 4), (1, 9), (1, 16)`
`(2, 1), (2, 4), (2, 9), (2, 16)`
`(3, 1), (3, 4), (3, 9), (3, 16)`
`(4, 1), (4, 4), (4, 9), (4, 16)`
Favourable cases `xylt16`
`(1, 1), (1, 4), (1, 9), (2, 1), (2, 4), (3, 1), (3, 4), (4, 1)`
Required probability `=(8)/(16)=(1)/(2)`
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