Question

Q. 3 coins are tossed simultaneously 200 times with the following frequencies of different outcomes
Outcome 3head 2head 1head nohead
Frequency 23 72 77 28
What is probability of 1)getting only 1 head
2)getting only 1 tail
3)getting no tail

Answer 1

probability of getting one head is 77 / 200 probability of getting only one tail is 9 /25 probability of getting no tail is 23 /200

Answer 2

probability= number of favourable outcomes/total number of outcomes
p(1)=77/200
p(2)=72/200=9/25
p(3)= 23/200