When representing a frequency distribution with a bar graph, which of these bars will be the tallest?

Step-by-step explanation:

Given that the random variable x represents the number of phone calls an author receives in a day

Poisson distribution is a discrete distribution with random variable countable.

Here no of calls cannot be in fraction or decimal.

Also given that X is Poisson with mean = 7.6

X is discrete since no of phone calls can take values as 1,2,3

X can take any value from 0 to infinity.

x=3.2 is not possible since 3.2 calls does not exist.