What is the probability that a random sample of 20 eggs from the same distribution will have a mean hatch time between 52 and 60 days?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220