Question

If a coin has been altered so that the probability of heads coming up is 3/10, then the probability of tails coming up is also 3/10 .
true or false

Answer 1

False. In a coin, there are 2 possible out comes i.e. a head and a tail. if p is the probability of one side coming up, then the probability of the other side comin up will be q = 1 - p.

Therefore, if the probability of head coming up is 3/10, the probability of tail coming up will be 1 - 3/10 = 7/10.