A deck of 5 cards (each carrying a distinct number from 1 to 5) is shuffled thoroughly. Two cards are then remove done at a time from the deck. What is the probability that the two cards are selected with the number on the first card being one higher than the number on the second card?
A. $$\frac{1}{5}$$
B. $$\frac{4}{{25}}$$
C. 1.4
D. $$\frac{2}{5}$$
Answer: Option A
This Question Belongs to Engineering Maths >> Probability And Statistics
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A. E(XY) = E(X) E(Y)
B. Cov (X, Y) = 0
C. Var (X + Y) = Var (X) + Var (Y)
D. E(X2Y2) = (E(X))2 (E(Y))2
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