1. Frequency Polygons – Card Complete & Match
In this activity students work individually or in groups to
match questions and answers.
‘Quick Cut’ – Choose the questions/slides you wish to use and delete others.
Sets of questions can then be easily guillotined to save time.

2. Printing To print handouts from slides -
Select the slide from the left. Then click:
File > Print > ‘Print Current Slide’
To print multiple slides -
Click on a section title to highlight all those slides,
or press ‘Ctrl’ at the same time as selecting slides to
highlight more than one. Then click:
File > Print > ‘Print Selection’
To print double-sided handouts -
Highlight both slides before using ‘Print Selection’.
Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

3. Match the data with a graph, then complete the frequency polygon.
Calculate the median group from each set of data.

4. Half Answers

5. Answers

6. Answers Data Frequency Polygon Median 1 D 140 < h ≤ 150 6 B2 G 7 F
150 < h ≤ 160 3 I 8 C 4 A 9 E 5 H
Answers

9. D Data 1 Height (h, cm) Frequency 120 < h ≤ 130 5 130 < h ≤ 14015
140 < h ≤ 150 17
150 < h ≤ 160 19
160 < h ≤ 170 4
Median Group is D

10. G Data 2 Height (h, cm) Frequency 120 < h ≤ 130 14 130 < h ≤ 14010
160 < h ≤ 170 6
Median Group is G

11. I Data 3 Height (h, cm) Frequency 120 < h ≤ 130 6 130 < h ≤ 1409
140 < h ≤ 150 13
150 < h ≤ 160 23
160 < h ≤ 170 19
Median Group is I

12. A Data 4 Height (h, cm) Frequency 120 < h ≤ 130 18 130 < h ≤ 14023
140 < h ≤ 150 26
150 < h ≤ 160 21
160 < h ≤ 170 12
Median Group is A

13. H Data 5 Height (h, cm) Frequency 120 < h ≤ 130 8 130 < h ≤ 14011
140 < h ≤ 150 13
150 < h ≤ 160 7
160 < h ≤ 170 1
Median Group is H

14. B Data 6 Height (h, cm) Frequency 120 < h ≤ 130 9 130 < h ≤ 14023
140 < h ≤ 150 17
150 < h ≤ 160 7
160 < h ≤ 170 4
Median Group is B

15. F Data 7 Height (h, cm) Frequency 120 < h ≤ 130 11 130 < h ≤ 14017
140 < h ≤ 150 18
150 < h ≤ 160 30
160 < h ≤ 170 24
Median Group is F

16. C Data 8 Height (h, cm) Frequency 120 < h ≤ 130 12 130 < h ≤ 14017
140 < h ≤ 150 18
150 < h ≤ 160 9
160 < h ≤ 170 4
Median Group is C

17. E Data 9 Height (h, cm) Frequency 120 < h ≤ 130 4 130 < h ≤ 14011
140 < h ≤ 150
150 < h ≤ 160 15
160 < h ≤ 170 29
Median Group is E

18. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
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