Question

In section a there are 20 boys and 20 girls while in section b there are 15 boys and 25 girls.one student is chosen from both sections. What is the probability of both being girls.

Answer 1

Answer:

Step-by-step explanation:

In section A

Number of Boys=20

Number of Girls=20

Total number of students in section A= 20+20

=40

In section B

Number of Boys=15

Number of Girls=25

Number of students in section B=15+25

=40

Total number of students in both sections= section A + section B

=20+40

=60

P(E) =p(both be girls)

= 20+25/60

=45/60

=9/12

=3/4

Hope you understand......

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