Question

at most two head if two coins are tossed​

Answer 1

Answer:

if you are asking for probability then it will be

Explanation:

1/4

Answer 2

Answer:

At first I evaluated the probability of getting 1 head which is:

(3/1)(1/2)1×(1/2)3−1=38

the probability of getting 2 heads:

(3/2)(1/2)2×(1/2)3−2=38

The total probability of getting at least two heads is equal: 38+38=68=34

But the problem is that, in a text book they did it in different way and got the result (1/2)

Explanation: