In shuffling a pack of 52 playing cards, four arc accidently dropped ; find the chance that the missing cards should be one from each suit.
Since from well-shuffled pack of cards, 4 cards missed out
∴n(S)=52C4
Let E be the event that four missing cards are from each suit
∴n(E)=13C1×13C1×13C1×13C1
∴P(E)=13C1×13C1×13C1×13C152C4
=13×13×13×1352×51×50×494×3×2×1=219720825