7th Grade Math

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Statistical Displays

PART A BCD E

Multi-Part

Lesson 3

GLE 0706.5.1

Collect, organize, and analyze

both single- and two-variable

data. GLE 0706.5.2 Select,

create, and use appropriate

graphical representations of

data. Also addresses

GLE 0706.1.8, SPI 0706.5.1,

SPI 0706.5.2.

Lesson 3D Statistical Displays 525

Main Idea

Use a graphing

calculator to make

histograms.

Graphing Technology:

Histograms

You can make a histogram using a graphing calculator.

The Moapa Middle School basketball team listed each player’s

average points per game. Make a histogram of the data.

Average Points per Game

15 3 11 7 4 6 18 1 2 21 10 3

92 1122451320412 12

Clear any existing data in list L1 by pressing

.

Then enter the data in L1. Input each number

and press.

Turn on the statistical plot by pressing^

[STAT PLOT].

Select the histogram and L1 as the Xlist by

pressing [L1].

Press. To set the

viewing window to be

[0, 25] scl: 5 by [0, 12] scl: 1,

press 0 25

5 0 12

1.

Press to create the histogram.

the Results

1. Press. Find the frequency of each interval.


2. Explain why the x-values for this data set were chosen as 0 to 25.


3. COLLECT THE DATA Use the graphing calculator to make a
   histogram of your classmates’ heights in inches. Analyze the
   graph to make some conclusions about the data.

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