a) [ 2 marks] A data entry error is made that adds an extra zero to one of the values in a data set: Which two of the following statistics would you expect to change the most? Mode, Median, Range, Variance

b) [3 marks] A study found that the correlation between mg of caffeine consumed during a day and hours slept the following night was -0.32. Using plain language, explain what this means.

c) [1 mark] If you were making a plot of the data in (b) which variable would you put on the x axis?