**Histogram**

A histogram is a graphical display of data using bars of different heights. A histogram is similar to a bar graph but it groups the data into ranges and frequencies.

The bars in a histogram, shouldn't have spaces in between them

www.youtube.com/watch?v=RWP2q4wyRds

Video about Histograms

Tools to make a histogram

1) Data- This is what your histogram is based off of.

2) Triple T-Chart- This helps you organize your data into ranges and helps to find the frequency.

How to make a histogram step by step

Range

Tally

Frequency

2-7

8-13

14-19

Data

3,4,5,6,9,2,7,2,12,14,14,16,18,17,15

Step 1. Arrange the data into a triple t-chart

This is how the triple T-chart should look like:

Step 2. Make the scale. The Range goes on the X axis and the frequency goes on the Y axis.

A) Students must know how to calculate range and frequency with the given data using appropriate strategies.B) Students must know how to label the X axis in relation to the given data.

Learning Goals

Step 3. Make your bars according to the range and

frequency. Make sure there are no spaces in between the bars.

Step 4. Add a title to your graph and label your

Question for the class:

These are the number of apples that fell off an apple tree each day over the course of 20 days:

5,12,12,16,17,7,21,15,17,19,17,4,6,2,3,14,14,13,28,25

X and Y axes.

7

2

6

|||| ||

||

|||| |

Check

Sum of the frequency, should

equal, the number of total data.

7+2+6=15

Data

3,4,5,6,9,2,7,2,12,14,14,16,18,17,15

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

X

Y

(Interval)

X

Y

EXIT CARD

Jack recorded the weight of his German Shepherd each month over the course of a year.

These are his recordings:

66, 68, 73, 70, 72, 75, 73, 78, 80, 82, 81, 79

A) Create a triple t chart and use that to make

your histogram

B) What do you think would happen too the data

if Jack had a smaller dog such as a Chihuahua?

C) Make an inference based on the mode

Example Question

First, let's start with a Triple T-Chart.

Use the strategies that were taught to you and your own thoughts to make a histogram with this data.

**BY: Arkam, Taahir, Himanshu, and Keone**