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Bar Graphs And Histograms PowerPoint PPT Presentation


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Bar Graphs And Histograms. categories. Bar Graphs compare _______________. do NOT. The bars _____________ touch. Number of Hats Owned. 30 25 20 15 10 5 0. intervals. Histograms compare ________________. DO. The bars _____________ touch. Frequency. 7–9. 1–3. 4–6.

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Bar Graphs And Histograms

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Bar graphs and histograms

Bar Graphs

And

Histograms


Bar graphs and histograms

categories

Bar Graphs compare _______________

do NOT

The bars _____________ touch

Number of Hats Owned

30

25

20

15

10

5

0

intervals

Histograms compare ________________

DO

The bars _____________ touch

Frequency

7–9

1–3

4–6

Number of Hats


Bar graphs and histograms

1) Create a Frequency Table

2) Find the frequency of each interval

3) Make the histogram

Cost of Items at the Grocery Store

1

2

1.00 – 1.99

4

2.00 – 2.99

1

3

3

3.00 – 3.99

Frequency

4.00 – 4.99

3

2

5.00 – 5.99

1

1

6.00 – 6.99

0

7.00 – 7.99

0

0 – 0.99

1 – 1.99

2 – 2.99

3 – 3.99

4 – 4.99

5 – 5.99

6 – 6.99

7 – 7.99

8 – 8.99

8.00 – 8.99

1

Dollars ($)


Bar graphs and histograms

1) Create a Frequency Table

2) Find the frequency of each interval

3) Make the bar graph

Types of Items at the Grocery Store

6

Produce

6

5

Desserts

3

4

Number of Items

2

Meats

3

Breads

1

2

1

Meats

Breads

Produce

Desserts

Grocery Category


Bar graphs and histograms

YOU TRY!

Pause the video


Bar graphs and histograms

Number of Hours of TV

1 //

2 ////

3 //// ////

4 //// /

5 //// ///

6 ///

7 //// ////

8 ///

9 ////

Number of Hours of TV

Frequency

The table below shows the number of hours students watch TV in one week. Make a histogram of the data.

Step 1: Make a frequency table of the data. Be sure to use equal intervals.

1–3

15

17

4–6

7–9

17


Bar graphs and histograms

Number of Hours of TV

Frequency

1–3

15

17

4–6

7–9

17

Step 2: Choose an appropriate scale and interval for the vertical axis. The greatest value on the scale should be at least as great as the greatest frequency.

Hours of TV Watched

22

20

18

16

14

12

Frequency

10

8

6

4

2

1 - 3

4 - 6

7 - 9

Hours


Bar graphs and histograms

Here is a list of the number of laps students ran in gym class:

4, 7, 9, 12, 3, 6, 10, 15, 12, 5, 18, 2, 5, 10, 7, 12, 11, 15

Make a Frequency Table

Number of Laps Run

11

3

10

5 - 9

6

9

8

10 - 14

6

7

6

15 - 19

3

Frequency

5

4

3

2

1

0 - 4

5 - 9

10 - 14

15 - 19

Laps


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