EXERCISE 13.4 Q NO. 8 AND 9

Two dice are thrown together. The probability that neither they show equal digits nor the sum of their digits is 9 will be a. 13/1 b. 13/18 c. 1/9 d. 8/9

If A={1,2,3,4,5},\ B={4,5,6,7,8},\ C={7,8,9, 10 , 11}a n d\ D={10 , 11 , 12 , 13 , 14} . Find: AuuBuuD

If A={1,2,3,4,5},\ B={4,5,6,7,8},\ C={7,8,9, 10 , 11}a n d\ D={10 , 11 , 12 , 13 , 14} . Find: AuuC

Let P(A)=7/(13), P(B)=9/(13) and P(AnnB)=4/(13) . Then P( A //B)= 5//9 b. 4//9 c. 4//13 d. 6//13

Find the Q_(1)andQ_(3) for the following distribution : 5, 3, 6, 3, 13, 9, 8, 24, 19, 20, 18.

Given that P (3, 2, 4) , Q (5, 4, 6) and R (9, 8, 10) are collinear. Find the ratio in which Q divides PR.

Show that the points (3, 4), (8, -6) and (13, 9) are the vertices of a right angled triangle.

Let 3 + 4 + 8 + 9 + 13 + 14 + 18 +……….40 terms = S. If S = (102)m then m =

The marks scored by 10 students in a monthly test are: 9, 13, 17, 6, 8, 13, 11, 10, 5, 9 The median marks are

If A={1,2,3,4,5},\ B={4,5,6,7,8},\ C={7,8,9, 10 , 11}a n d\ D={10 , 11 , 12 , 13 , 14} . Find: Ann(BuuC)