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Question

A die is rolled. If X denotes the number of positive divisors of the outcomes then the range of the random variable X is

A
{1,2,3}
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B
{1,2,3,4}
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C
{1,2,3,4,5,6}
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D
{1,3,5}
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Solution

The correct option is B {1,2,3,4}
When we get 1, number of positive divisors are 1
When we get 2, number of positive divisors are 2
When we get 3, number of positive divisors are 2
When we get 4, number of positive divisors are 3
When we get 5, number of positive divisors are 2
When we get 6, number of positive divisors are 4
Hence range of random variable X is {1,2,3,4}
Therefore Answer is B

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