HD ... Box-plots, Cumulative Frequency
Lowest score =
Highest score =
Median =
Use the box plot to find the missing numbers
10
15
20
Interquartile range =
Lower quartile =
Upper quartile =
25
30
Lowest score =
Highest score =
Median =
Use the box plot to find the missing numbers
10
15
20
Interquartile range =
Lower quartile =
Upper quartile =
25
30
Here are the scores of 11 pupils
Use the scores to work out the following
3   7   8   8   10   11   14   17   20   21   22
Median
Interquartile range
Lower quartile
Upper quartile
a. Who had the highest score?
b. What was median score for girls?
c. What was the interquartile range for boys?
10
15
20
a girl
25
a boy
30
Girls
Boys
Complete the cumulative frequency
10 < h ≤ 15
15 < h ≤ 20
5 < h ≤ 10
Height
0 < h ≤ 5
Frequency
15
28
11
6
Cumulative
Frequency
6
2   5   6   7   6   13
Calculate the 4 point moving averages
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