Question

Do you know how to solve this? I tried and got 15/16

Answer 1

15:1

Explanation:

When a coin is tossed once, there are two probable outcome: a heads or a tail.

Now, when the coin is tossed four times, the total number of outcomes will be:

`2^4=16`

• The outcome of obtaining ,heads all 4 times ,= 1

,

• The number ofunfavourable outcomes = 16-1 = 15

The odds against an event is calculated using the formula below.

`\frac{\text{Number of Unfavourable Outcomes}}{\text{Number of favourable Outcomes}}=(15)/(1)=15\colon1`

The odds against obtaining heads all 4 times is 15:1.