Read Histograms and Frequency Polygons

Identify the histogram features

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Which of the following is a required feature of a histogram?

The bars must touch.

The bars must be different widths.

The bars must be separated by gaps.

The bars must be arranged from tallest to shortest.

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Explanation

Reading a histogram: Age groups

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The histogram shows the number of viewers in each age group.

Which age group has the highest number of viewers?

6–15

16–25

26–35

36–45

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Explanation

Carry-on luggage: 8–11 lb range

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According to the histogram in Example 8, how many passengers carried luggage in the 8–11 pound range?

120

300

430

540

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Carry-on luggage: 12–19 lb range

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The 12–19 pound range spans two bars in the histogram. How many total passengers carried luggage in this range?

540

970

1510

2260

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Histogram vs Frequency Polygon

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Which statement correctly describes the relationship between a histogram and its frequency polygon?

A frequency polygon connects the midpoints of the tops of the histogram bars.

A frequency polygon is drawn behind the histogram bars.

A histogram is created by erasing the frequency polygon.

A frequency polygon uses unequal class widths.

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Identify the class interval

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In a histogram, the width of each bar represents a ______.

single value

class interval

frequency

percentage

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Sort: Steps to read a histogram

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Please drag and drop the options to sort them

Sort the steps for reading a value from a histogram.

Locate the class interval on the horizontal axis.

Interpret the height as the frequency.

Find the height of the bar.

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Match: Graph type to description

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To complete the line match

Click on an item in the first group
Click on an item in the second group
To delete a match, double click on a line

Graph

Histogram

Frequency Polygon

Bar Graph

Description

Bars touch and represent class intervals

Points connected by straight lines

Bars do not touch

Match each graph type with its correct description.

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Interpret a frequency polygon

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The frequency polygon below shows luggage weights.

At which weight is the frequency highest?

5.5 lb

9.5 lb

13.5 lb

21.5 lb

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Identify words in context

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Select the words that describe key histogram vocabulary: "A histogram uses (1) that represent ranges of values, and the bars always (2)."

Please drag and drop the selected option in the right place or type it instead

touch

class intervals

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Identify the histogram features

Correct Answer

Explanation

Reading a histogram: Age groups

Correct Answer

Explanation

Carry-on luggage: 8–11 lb range

Correct Answer

Explanation

Carry-on luggage: 12–19 lb range

Correct Answer

Explanation

Histogram vs Frequency Polygon

Correct Answer

Explanation

Identify the class interval

Correct Answer

Explanation

Sort: Steps to read a histogram

Correct Answer

Explanation

Match: Graph type to description

Graph

Description

Correct Answer

Explanation

Interpret a frequency polygon

Correct Answer

Explanation

Identify words in context

Correct Answer

Explanation

Quran Recitation

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