Question: Following numbers are accidents per year
12, 15, 23, 11, 9, 24, 13, 16, 12, 14, 12

Assuming that accidents per year is normally distributed, what percentage of all people have between 9.8 and 19.4 accidents per year?

Assuming that accidents per year is normally distributed, what is the range of accidents per year for 95% of all people?