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 \(\dfrac{3}{5}\)
