Australian researchers looking into the screen time of 9 year olds have conducted a survey. Table 1 below shows the time spent on devices for these children over a 12 hour period. Consider the data and answer the following. Table 1: Screen time for children (in hours) over a 12 hour period child 1 child 2 child 3 child 4 child 5 child 6 1.5 child 7 5.3 child 8 4.3 child 9 4.6 child 10 5.2 child 11 2.4 child 12 9.1 6.7 1.2 4.3 4.7 3.8 (a) What is the mode of the data set? (b) What is the median of the data set? (c) What is the mean of the data set? (d) Find the standard deviation for the sample shown