(a)[3]
With $2\text{ cm}$ representing $10$ minutes, draw a horizontal axis for times from $60$ minutes up to $130$ minutes. Select an appropriate scale for the vertical axis, then draw a histogram for the data.
(b)[1]
Which interval contains the median time?
(c)[3]
Calculate an estimate for the mean time needed to complete the journey.
(d)[1]
A driver is selected at random. Calculate the probability that this driver took $95$ minutes or less to complete the journey.
(e(i))[2]
Two drivers are selected at random from the $80$. Calculate the probability that both took more than $100$ minutes to complete the journey.
(e(ii))[2]
Calculate the probability that one took $80$ minutes or less while the other took more than $110$ minutes.