Question

The list below shows all of the possible outcomes for flipping four coins. HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT What is the probability of at least two coins landing on heads?

Answer 1

The right answer is D

Explanation:

It's correct in edg!

Answer 2

`\text{Probability of atleast two heads is}=(11)/(16)`

Explanation:

We have total of 16 possible outcomes for flipping of four coins

We need to find the probability when atleast two head comes that means it should be atleast 2 head means it can be more than 2 so, can be 3 or 4 also

We will consider the cases of 2,3,4 heads on coins

So, the cases of 2 heads are HHTT ,HTHT ,HTTH, THHT ,THTH ,TTHH =6 outcomes

The case of 3 heads are HHHT ,HHTH ,HTHH, THHH=4 outcomes

The case of 4 heads are HHHH=1 outcome

So, the probability of atleast two head will be 6+4+1=11

`\text{Probability of atleast two heads is}=(11)/(16)`