Learn Ncert All Solutions

from a handpicked tutor in LIVE 1-to-1 classes

from a handpicked tutor in LIVE 1-to-1 classes

# From the employees of a company, 5 persons are selected to represent them in the managing committee of the company. Particulars of five persons are as follows:

S.No. Name Sex Age in Years

1 Harish M 30

2 Rohan M 33

3 Sheetal F 46

4 Alis F 28

5 Salim M 41

A person is selected at random from this group to act as a spokesperson. What is the probability that the spokesperson will be either male or over 35 years?

**Solution:**

The total number of males = 3 and the total number of females = 2.

Let A be the event in which the spokesperson will be a male.

Then, P (A) = 3/5.

B be the event in which the spokesperson will be over 35 years of age.

Then, P (B) = 2/5.

Since there is only one male who is over 35 years of age,

Therefore, P (A ∩ B) = 1/5

Using P (A υ B) formula,

P (A υ B) = P (A) + P (B) - P (A ∩ B)

= 3/5 + 2/5 - 1/5

= 4/5

Thus, the probability that the spokesperson will either be a male or over 35 years of age is 4/5

NCERT Solutions Class 11 Maths Chapter 16 Exercise ME Question 8

## From the employees of a company, 5 persons are selected to represent them in the managing committee of the company. Particulars of five persons are as follows:

S.No. Name Sex Age in Years

1 Harish M 30

2 Rohan M 33

3 Sheetal F 46

4 Alis F 28

5 Salim M 41

A person is selected at random from this group to act as a spokesperson. What is the probability that the spokesperson will be either male or over 35 years?

**Summary:**

The probability that the spokesperson will be either male or over 35 years is 4/5

Math worksheets and

visual curriculum

visual curriculum