Question

Box 1 contains three cards bearing numbers 1, 2, 3; box 2 contains five cards bearing numbers 1, 2, 3, 4, 5; and box 3 contains seven cards bearing numbers 1, 2, 3, 4, 5, 6, 7. A card is drawn from each of the boxes. Let xi be the number on the card drawn from 'i' th box i=1,2,3. a, The probability that x1+x2+x3 is odd is. b, The probability that x1, x2 and x3 are in the arithmetic progression, is

Answer 1

Answer:

Let

be the number on the card drawn from the ith box, i = 1, 2, 3. The probability that

is odd is The probability that

are in an aritmetic progression is

Step-by-step explanation:

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