Question

If from six to seven in the evening one
telephone line in every five is engaged in a
conversation: what is the probability that
when 10 telephone numbers are chosen at
random, only two are in use?
a. 0.6980
b. 0.2315
O C. 0.5980
d. 0.3020​

Answer 1

Answer:

I think Option =A

Step-by-step explanation:

ye wrong bhi ho Sakta he