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GB-31-01-001 · Averages from a list

Here are five scores.
40,24,15,24,3140,\quad 24,\quad 15,\quad 24,\quad 31

(a) Find the median and range.

(b) Find the mean.

Part (a) Averages from a List Booklet p. 67 & p. 70
Method
1) Order the list to find the middle value (Median) and Max − Min (Range)
2) Mean = Total sum ÷ Count
Worked Example (GB-31-01-001 · Part (a))
Find the median and range.
1)
Median 24.
2)
Range 25.
Ans = Median 24; range 25.
Part (b) Averages from a List Booklet p. 67 & p. 70
Method
1) Order the list to find the middle value (Median) and Max − Min (Range)
2) Mean = Total sum ÷ Count
Worked Example (GB-31-01-001 · Part (b))
Find the mean.
1)
Total 134, divide by 5.
2)
26.8
Ans = 26.8