Question

From a group of three boys and two girls we select two children.What is the set Representing the event: a) One girl is selected b) Atleast one girl is selected? ​

Answer 1

Step-by-step explanation:

option b is correct

hope it helps you..

Answer 2

Group A: 3 girls, 1 boy

Group B: 2 girls, 2 boys

Group C: 1 girl, 3 boys

The combination of 1 girl and 2 boys can be selected in:

(i) A - girl, B - boy, C - boy:

4

3

×

4

2

×

4

3

=

64

18

(ii) A - boy, B - girl, C - boy:

4

1

×

4

2

×

4

3

=

64

6

(iii) A - boy, B - boy, C - girl:

4

1

×

4

2

×

4

1

=

64

2

Hence, required probability =

64

18

+

64

6

+

64

2

=

64

26

=

32

13