Question

1.Write down the phone numbers of 20 friends. i. Find the probability of getting the number 0 in a phone number from the list of phone numbers collected ii. Find the probability of a digit repeating twice in the same phone number from the list of phone numbers.

Answer 1

Answer:

in my contact ,

probability of getting number 0 = 0/20

and

probability of getting repeating twice = 15/20

i.e., 3/4