(a(i))[1]
State the class interval that contains the median time.
(a(ii))[4]
Calculate a mean-time estimate.
(b(i))[2]
Determine the probability that this person spent more than 10 minutes travelling to work. Give your answer as a fraction in simplest form.
(b(ii))[3]
Calculate the probability that one of these people took 5 minutes or less and the other took more than 5 minutes.
(c(i))[1]
Finish the cumulative frequency table.
(c(ii))[3]
Use the grid to draw a cumulative frequency graph to represent this information.
(c(iii))[2]
Find an estimate for the 80th percentile.
(c(iv))[3]
Find an estimate for the percentage of people who spent more than 45 minutes travelling to work. Show all your working.