Understanding Histograms and Bar Charts

Understanding Histograms and Bar Charts

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains how to draw and understand histograms. It covers the differences between histograms and bar charts, focusing on the concept of frequency being proportional to the area of the bars. The tutorial details how to calculate frequency density by dividing frequency by class width and provides step-by-step instructions for drawing a histogram accurately. It emphasizes the importance of using a ruler for precision and guides viewers through completing a histogram with given data, ensuring the correct representation of frequency and area.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key difference between a histogram and a bar chart?

Histograms have bars of equal width.

Bar charts represent frequency with the height of the bars.

Histograms use the height of bars to represent frequency.

Bar charts have bars of different widths.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a histogram, what does the area of a bar represent?

The height of the bar

The width of the bar

The class width

The frequency

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is frequency density calculated?

Frequency multiplied by class width

Class width divided by frequency

Frequency divided by class width

Frequency plus class width

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the width of a bar that spans from 20 to 25?

25

20

10

5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a bar has a frequency density of 0.5 and a width of 20, what is its frequency?

5

10

0.5

20

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the height of a bar with a frequency of 10 and a width of 20?

0.5

1

2

10

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What tool is recommended for drawing accurate histograms?

A ruler

A calculator

A protractor

A compass

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