Collection And Analysing Of Data Worksheets Page 20
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48Step 2
Choose a scale.
Write a scale on the side of the graph. A scale
is a set of numbers that represents the data.
May Birthdays
12
10
8
6
Each line stands
4
for 2 students.
2
0
First Second Third Fourth
Fifth
Scale
Grade in School
Step 3
Draw the bars.
Draw vertical bars to match each number from
your data.
About It
1. How would you decide what scale to use?
2. Why do you think the scale counts by 2?
3. Why do some bars stop between two numbers or two lines?
and Apply It
Display each set of data in a bar graph.
4.
5.
Beverage Chosen Most Often at Lunch
Favorite Meal
Meal
Tally
Beverage
Tally
Apple Juice
Breakfast
Lunch
Milk
Dinner
Water
6. Place 20 two-color counters in front of you, red side up. A partner
keeps time. Experiment to see how many counters you can turn
from red to yellow in 5, 10, and 15 seconds. Record the data in a
tally chart, then display the results in a bar graph.
E
Refer to Step 2. How will the bar graph
7.
WRITE MATH
change when the scale changes?
Lesson 3A Bar Graphs 315
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