Question

in a class there are 15 boys and 10 girls three students are selected at random the probability that one girl and two boys are selected​

Answer 1

Answer:

Step-by-step explanation:n a class there are 15 boys and 10 girls three students are selected at random the probability that one girl and two boys are selected​

Answer 2

Answer:

Let S be the sample space and E be the event of selecting 1 girl and 2 boys

Then, n(S) = Number ways of selecting 3 students out of 25

=25C3=25×24×233×2×1=2300n(E)=10C1×15C2=10×15×142×1=1050∴P(E)=n(E)n(S)=10502300=2146