Variance of Difference and Divisors (Jee Mains) | ExamDuo
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Dispersion and Variance
Medium
Variance of Difference and Divisors
Two dice
A
and
B
are rolled. Let numbers obtained on
A
and
B
be
α
and
β
respectively. If the variance of
α
−
β
is
p
q
, where
p
and
q
are co-prime, then the sum of the positive divisior of
p
is equal to
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SELECT ONE OPTION
A
36
B
31
C
48
D
72
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