Road Accidents in Small Towns
In smaller cities like Port Elizabeth in South Africa, the rate of road accidents caused by males between the ages of 19 and 34 is 64%, which is much lower than the rate of accidents caused by males between the ages of 19 and 34 in Johannesburg. S
Suppose that there are 200 road accidents in a day.
a. What is the number of accidents caused by males between the ages of 19 and 34?
b. What is the standard deviation for the number of accidents caused by males between the ages of 19 and 34?
c. After a great many days, according to the Empirical Rule, on about 95% of these days, the number of accidents caused by males between the ages of 19 and 34 will be as low as _______ and as high as _______.
d. If you found that on one day, 158 out of 200 accidents were caused by males between the ages of 19 and 34, would you consider this to be a very high number?