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Two friends Anil and Ashraf were born in the December month in the year $2010$. Find the probability that :
(i) they share same date of birth.
(ii) they have different dates of birth.
(i) they share same date of birth.
(ii) they have different dates of birth.
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Number of days in December $2010 = 31$
(i) P (same date of birth) = $\frac{1}{31}$
(ii) P (different dates of birth) = $\frac{30}{31}$
(i) P (same date of birth) = $\frac{1}{31}$
(ii) P (different dates of birth) = $\frac{30}{31}$