SOLUTION: Q:1- A bag contains 4 white and 3 black balls and two balls are drawn at random. Find the probability that (i)Both are white (ii)Both are black (iii)one white and one black. Q:2-

Question 460125: Q:1- A bag contains 4 white and 3 black balls and two balls are drawn at random. Find the probability that (i)Both are white (ii)Both are black (iii)one white and one black.
Q:2- From a well-shuffled pack of 52 cards, a card is drawn at random. Find the probability that it is a (i)King (ii)Card of spades (iii)red card (iv)black card (v)a picture card (vi)an ace (vii)jack of clubs.
Q:3- A coin is tossed twice. Find the probability that at least one head turns up.
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
1)
i. 4/7 * 3/6 = 12/42 = 2/7
.
ii. 3/7 * 2/6 = 6/42 = 1/7
.
iii. (4C1)(3C1)/(7C2)
=12/21
=4/7
.
Ed
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