Question

there are 60 boys and 40 girls in a class a studentis selected at random find the proability that student is a girl?​

Answer 1

Answer:

2/5 is the ans

Step-by-step explanation:

given: 60 boys n 40 girls..,

ttl students p(n)=100

∴proability =p(g)/p(n)

=>40/100=2/5

Answer 2

Solution:-

Probability = It is define as the Ratio of the Observation to the Sum of the total Observations.

Here,

There are 60 boys and 40 girls in a Class.

=) Total Number of Students = 100

=) Total Outcome = 100.

To Find:-

The proability that student is a girl.

There are 40 girls and anyone can from these 60 girls can be selected.

=) Number of Girls = 40

=) Favourable Outcome = 40.

Hence,

Probability that the selected Student is a Girl = Favourable Outcome/ Total Outcome

=) Probability that the selected Student is a Girl = 40/100

=) Probability that the selected Student is a Girl = 2/5

Hence,

Probability that the selected Student is a Girl is 2/5.