Q3. Upon realising that students were not concentrating on his lectures during the first period (7 - 9 am) of the day, a GIJ lecturer decided to find out how much each student spent on breakfast. The table below shows the distribution of how much four of the students spent on break- fast before the lectures. Student 1 Amount (x)/GH 1 0 2 3 6 4 a) Find the standard deviation for the distribution. b) Why would you choose the standard deviation over the range in describing the variability of a distribution? next page 3