Texas Instruments TI-Nspire CX User manual

TI-Inspire manual 1

Newest version

Older version

Real old version

This version works well but is not as

convenient entering letter

TI-Inspire manual 1

Instructions

Ti-Inspire for statistics

General Introduction

TI-Inspire manual 2

TI-Inspire manual 3

General Instructions

Press the On, Off button to go to Home page

Opens a page

for calculation.

This is different

from “scratch

pad” above in

that it can be

saved.

Open a page

for entering

data in the

form of a

spread sheet

Open a page

for plotting

and graphing

data.

Opens a page

for entering

document and

texts

Quick calculation page

TI-Inspire manual 4

Use the middle button to navigate among the choices

To select an option press , in the middle button

Press [ Enter] (see below)

TI-Inspire manual 5

Important If you try to divide numbers TI-Inspire will give you a fraction since a

decimal is only an approximation 1

1 Which I am more than happy to live with

Deleting

Highlight the item or column or number and hit “del”

TI-Inspire manual 6

Finding Mean, Median and Mode

Step 1) Open list so you can enter your data

Press

Click the above icon

A new document opens with

Lists & Spreadsheet on the

page.

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Enter your data in a column (you could use any column)

But usually start with A

Give the column a name using the letter keys

Put name in top row

beside the letter

Put NOTHING in

this row for now.

TI-Inspire manual 8

use the arrow to select

the page you want and

then hit “enter” to go to

that page

TI-Inspire manual 9

Problem: Find the mean of the number of hours of TV watched by a sample of freshmen men

during their first week of college.

35, 28, 29, 31, 36, 26, 23, 34,19

Click [Menu]

Enter the Data in the column

TI-Inspire manual

10

Give column a title if you wish otherwise it will be known by the letter above it.

Generally it is better to give each column a unique title so it can be found easily.

Use alphabet keys at the bottom of the calculator to do this

.

Press Menu

Hit

[Menu]

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Choose “4: Statistics”

The choose 1: Stat Calculations

Use arrow on navigator button to move left/ right or up/down

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Choose “1: One-Variable Statistics

Step 2) leave “num of lists” on "1" and

and then use Tab to get to [OK]

Leave “Num of

Lists” as 1

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and then use Tab to get to [OK]

= mean (pronounced “X bar”) Scroll

down for median and other data

This tells the TI where

the data is you want the

mean of. columns

Leave these three alone

Leave Frequency at 1 and

leave the others blank

This tell the calculator where

to put the answers. Choose a

column that does not already

have data in it because it will

override anything that is there

You can also press the

arrow at the end and it

will give you the names

of all thedata sets you

have at that time

TI-Inspire manual 13

Clearing column and/ or rows of Data

First columns

Use

Go to

Click the above icon.

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use center navigator button to the data entry button which will cause it to highlight.

Click on the letter and this will cause the whole column to highlight of the top of the

column you want to clear

When column highlights

Column will empty

Several rows or several columns at the same time: Drag to select additional rows or

columns

Copying rows or columns

Use the same procedure as above to highlight the row or column. When it is highlighted

press [ctrl] C to copy a column or row and [ctrl] V to paste it.

Hold

down [ctrl]

and hit [del/clear]

TI-Inspire manual 15

Constructing a Box plot

IMPORTANT: The column you want to turn into a box plot must have a name

Add a new number to you list of freshman tv watches. This one watches 56 hours a

week and probably will not be here the second semester.

On

Select Graph button to get a graph

screen

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This box will appear

Click here

Name of several file may

appear pick the one you

wish to do box plot on

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It looks this

[Menu]

Choose 1: Plot type

Choose 2 Box plot

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Move the arrow over part of the box or the outlier and it becomes a hand

the number that appears is the where the outliers start. In this case “36 “ is not an

outlier but anything greater is

Move the hand to the line in the middle o fhte box and it will give you the median. Inthis

case 30

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Texas Instruments TI-Nspire CX User manual

Texas Instruments TI-Nspire CX User manual

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