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?

Answer 1

Answer:

The probability of tails coming up is $\dfrac{3}{5}$

D is correct

Step-by-step 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

$P(H)=\dfrac{2}{5}$

The sum of probability of all value is 1.

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

$\dfrac{2}{5}+P(T)=1$

                   $P(T)=1-\dfrac{2}{5}$

                   $P(T)=\dfrac{3}{5}$

Hence, The probability of tails coming up is $\dfrac{3}{5}$

Answer 2

I believe the answer is D.