Question

The incidence of an occupational disease in an industry is such that the workers have 20%.
chance of suffering from it. If there are 500 workers what is the probability that sample of 5
workers at most 1 suffer from the disease?​

Answer 1

Answer:

Here 20% of the workers have a chance of suffering from the disease.

Therefore

p=

100

20

=

5

1

(1−p)=

5

4

. ...(probability of not suffering from the disease).

Now the required probability, where out of 6, none suffers from the disease is

6

C

0

(1−p)

6

(p)

0

=(

5

4

)

6