Question

Que 9 only what will be the answer

Answer 1

Answer:

probability that pq will be even = 2/3 If p is chosen at random from the set (1,2,3,4) & q from the set (5,6,7)

Step-by-step explanation:

Complete Question is

what is the probability that pq will be even

p is chosen at random from the set (1,2,3,4)

q is to chosen at random from the set (5,6,7)

=> total Possibilities = 4 * 3 = 12

pq will be Even if any of the even number will come or

= 1 - Probability of odd numbers from both

= 1 - (2/4)(2/3)

= 1 - 1/3

= 2/3

probability that pq will be even = 2/3

Another way :

Cases of Even pq

(1 , 6) , ( 2, 5) , ( 2 , 6) , ( 2, 7) , ( 3 , 6) , ( 4, 5) , ( 4 , 6) , (4 , 7) = 8

Probability = 8/12 = 2/3