1. Lesson 0 -13 Representing Data*
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time
distance

2. Example 1 Bar Graphs
The frequency table shows the results of a survey of students’ favorite fruit. Make a bar graph to display the data.
Favorite Fruit
Fruit
Tally
Frequency
Apple
llll llll 10
Banana
llll 5
Cherries
llll ll 7
Grapes 4
Watermelon
lllI IIII 9
Step 1 Draw a horizontal axis and a vertical axis. Label the axes as shown. Add a title.
Step 2 Draw a bar to represent each fruit. The vertical scale is the number of students who chose each fruit. The horizontal scale identifies the fruit chosen.

3. llll llll llll llll llll
Example 2 Histograms
The frequency table shows the prices of video games at an online store. Make a histogram of the data.
Prices of Video Games
Price ($)
Tally
Frequency
10-19
llll llll llll llll llll 25
20-29
llll llll llll llll ll 22
30-39
llll llll llll 15
40-49
llll 5
50-59
lllI II 7
Step 1 Draw and label a horizontal and vertical axis. Include a title.
Step 2 Show the intervals from the frequency table on the horizontal axis.
Step 3 For each height interval, draw a bar whose height is given by the frequencies. There is no space between the bars.

4. Example 3 Line Graphs
The table shows the number of tickets for the school dance that were sold in eight days. Make a line graph of the data.
Dance Tickets Sold
Day 1 2 3 4 5 6 7 8
Number of Tickets Sold 12 18 25 19 30 13 10 20
Step 1 Draw a horizontal axis and a vertical axis and label them as shown. Include a title.
Step 2 Plot the points to represent the data.
Step 3 Draw a line connecting each pair of consecutive points.

5. Cost of Running Shoes ($)
Key: 4|5 = $45
Example 4 Stem-and-Leaf Plots
The prices of fifteen pairs of running shoes are shown at the right. Use the data to make a stem-and-leaf plot.
Cost of Running Shoes ($) 45 79 62 55 50 48 49 86 75 60 64 71 69 58
The greatest place value is tens. So, $45 would have a stem of 4 and a leaf of 5.
Stem
Leaf 4 5 6 7 8

6. Peanut Butter and Jelly
Example 5 Circle Graphs
The table shows the results of a survey in which students were asked to name their favorite sandwich.
Favorite Sandwich
Sandwich
Number of Students
ham 6
cheese 4
tuna 2
peanut butter and jelly 8
First, find the ratio that compares the number of students who chose each sandwich to 20. Then multiply each ratio by 360 to find the number of degrees for each section of the graph.
ham:  360 = 108
cheese:  360 = 72
tuna:  360 = 36
peanut butter and jelly:  360 = 144
Cheese 4
Ham 6
Favorite Sandwich
Peanut Butter and Jelly 8
Tuna 2

7. Example 6 Box-and-Whisker Plots
Draw a box-and-whisker plot for these data.
5, 15, 18, 8, 7, 12, 15, 13, 1, 5, 10
Range in order small to large.
1, 5, 5, 7, 8, 10, 12, 13, 15, 15, 18
Split into halves.
Split into quarters. 