The variable X has a Binomial distribution. P(success) = 0.5 and the number of trails are 4. Then the correct option is A.
What is probability?
Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.
A coin is flipped four times.
X is the number of times it will land with a head up.
The probability of a head or success is 0.5.
If a coin is tossed four times then the value of X is 4.
Thus, the variable X has a Binomial distribution. P(success) = 0.5 and the number of trails are 4. Then the correct option is A.
More about the probability link is given below.
https://brainly.com/question/795909
