Question

You flip three coins. What is the probability that you get at least two heads, given that you get at least one head?

A. 4/7
B. 1/2
C. 5/8
D. 3/8
E. 3/7

Answer 1

S={HHH,HHT,HTH,THH,HTT,THT,TTH}
No. of exhaustive events=7
Favourable events are {HHH,HHT,HTH,THH}
No. of favourable events=4
Required probability=?

Answer 2

I don't get it @surjithayer

Answer 3

Would it be 4/7 ??

Answer 4

correct.

Answer 5

Thank you very much !

Answer 6

you got it.