Question

Three coins are tossed simultaneously 100 times with the following frequencies of different outcomes. No. of tails are 0 1 2 3 and frequencies are 25 30 22 23 Find the probability of getting at least 2 tails is

3/20

1/20

7/20

9/20​

Answer 1

The correct option is 4no. which is 9/20 .

Answer 2

Answer:

9/ 20

Step-by-step explanation:

By adding frequency 22 and 23 we will ge no. of favorable outcomes =45

total no. of outcomes are 100

so. probablity getting atleast 2 tails is =

no. of favorable outcomes / total no. of outcomes

= 45/100

=9/20