Question

Suppose a coin has been altered so that the probability of heads coming up is 2/5. What is the probability of tails coming up?

A. 1
B. 2/5
C. 0
D. 3/5

Answer 1

I believe the answer is D.

Answer 2

The probability of tails coming up is
`(3)/(5)`

D is correct

Explanation:

Suppose a coin has been altered so that the probability of heads coming up is 2/5.

A coin has two possibility either head or coin.

We are given probability of heads coming up is 2/5

`P(H)=(2)/(5)`

The sum of probability of all value is 1.

`P(H)+P(T)=1`

`(2)/(5)+P(T)=1`

`P(T)=1-(2)/(5)`

`P(T)=(3)/(5)`

Hence, The probability of tails coming up is
`(3)/(5)`