QUESTION1. [20]

The following data set indicates the final marks of 20 students registered for STAT102.

58 40 64 83 60 90 68 64 56 69

40 58 45 52 86 93 64 87 62 81

1.1. Calculate the average marks for the students. (3)

1.2. Calculate the standard deviation. (5)

1.3. Determine the lowest quartile. (5)

1.4. Calculate the interquartile range. (7)

asked by guest
on Mar 25, 2025 at 2:25 pm



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