There are fivequestions below

A sample of employees were tested on data-entry skills for one hour , and the number of errors (x) they made and the percent of employees (p) making x errors were recorded as follows.

What is the range for the number of errors made by the employees in the sample?

What percent of the sample made fewer than 4 errors?

If 40 employees in the sample made exactly 5 error, what was the total number of employees in the sample?

If those employees who made 6 or more errors were removed from the sample and an employee were selected at random from those remaining, what is the probability that the employee selected made no errors?

What was the median number of errors in the sample?