(a(i))[3]
Complete the histogram so that it represents this information.
(a(ii))[4]
Calculate an estimated mean mass for the parcels.
(a(iii))[1]
Find the probability that the chosen parcel has a mass of 2 kg or less.
(a(iv))[3]
Work out the probability that one has mass greater than 7 kg while the other has mass 4 kg or less.
(b(i))[1]
Find the median value.
(b(ii))[1]
Find the interquartile range of the masses.
(b(iii))[2]
Describe how removing these parcels affects the median mass of the parcels left behind. Give a reason for your answer.