Question 3: The marks for a sample of Mr. Michael's two Data Management classes are given below: Class A had four students and the marks were 64, 65, 55 and 65. Class B had four students and the marks were 92, 65, 51 and 84

a) Determine the three measures of central tendency for each class (round to nearest number). (6 marks)

b) Calculate the variance and standard deviation for each class (round to two decimals places). (6 marks)

c) Use part b) to comment on the data. (2 marks)

Question 2: For the following data on scores on a test: 45, 72, 76, 54, 20, 89, 85, 98, 56, 67, 75, 80. a) Make a five-figure summary (10 marks)

b) Make a box-and-whisker plot (3 marks)

c) Are there any outliers? (8 marks)