Page 21 - STEPS MATHEMATICS 4A
P. 21
Bar-line graphs RM25 or 26
Gordon collected data about the numbers of letters
in people's last names.
He made a tally chart ... ... and then drew a bar-line graph.
A/uwbers it,-,
oj. Letters TaJLUj To^JL 24-
a 1 1 2 2.0.
S-
Q 18-
<v
3 (/ 2 a. ifc.
i+ Illl- Illl 10
til 1 III f i u-
5 m- -Hff 4W- -Htf Jo ? 10-
(o iftt-HH-Htt-HtMIII ^f
7 •W+-W- II 12.
2- — 1 ——— , — , — , — , — , — — r_
fr 4tH- 5 0 .__J__J
X345fo7«9/o £»*•«
9 mf 5 Mumber c£ Letters 10
/o II a
f*"»r«.t*ift.x
IO II a
You could use class registers,
or the telephone book,
What was the most common length or lists qf/ootball teams.
of name?
How many people had names
with eight letters?
Use RM25 or RM26 to make a tally
chart and a bar-line graph to show
the number of letters in the last name
of about 80 people. Choose a scale
for your bar-line graph.
Write six facts.about your graph.
Ask someone to check your facts.
CHALLENGE
Choose a topic to collect data on.
Draw a tally chart and a bar-line graph to show your results.