Question

out of 9 outstanding students in a college there are 4 boys and 4 girls. A team of 4 students is to be selected for a quiz programme. Find the probability that two are boys and two are girls.
Please answer it fast!!

Answer 1

Answer:

10/21

Step-by-step explanation:

Out of 9 outstanding students in a college there are 4 boys and 4 girls.

Question seems to be incorrect because 4 + 4 = 8 but it said 9 students.

Question :

Out of 9 outstanding students in a college there are 4 boys and 4 girls. A team of 4 students is to be selected for a quiz program. Find the probability that two are boys and two are girls.

Solution:

From 9 students, 4 are selected,

= > C(9,4)

=> 126

Probability that two are boys and two are girls.

=> C(4,2) * C(5,2)

=> 6 * 10

=> 60

Required probability,

= 60/126

= 10/21

Hope it helps!