3. The table below shows the heights of the students in a class collected by an experimenter directly measuringthe students' heights. a) Describe the characteristics of this data. b) Find the range of this data. c) Find the median. d) Find the interquartile range and semi-interquartile range. e) Using your answers to (b), (c) and (d) draw a box plot to display this data. f)Calculate the mean of the data. g) The standard deviation of this data is 15.2. Explain what standard deviation measures.

Fig: 1

Fig: 2

Fig: 3

Fig: 4

Fig: 5

Fig: 6

Fig: 7

Fig: 8

Fig: 9