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Module E
Statistics with
TI-Nspire™ Technology
Module E
Statistics with
TI-Nspire™ Technology
Lesson 2: Properties
In the previous lesson you learned:
 The difference between numerical and categorical data.
 That you need different graph-types, depending on the type of data.
 How to calculate statistics to characterize the central tendency and the
dispersion of a dataset.
 That the distribution of a sample looks like the distribution of the
population.
 There is a difference between the mean and standard deviation of a
sample and the mean and standard deviation of the population.
 That some populations can be described by a Gaussian curve.
 That you can calculate percentages by integrating a density function.
 How to graph a relationship between two variables and add a regression
curve.
3 | Lesson E.2
TI-Nspire™ Technology
In this lesson you will:
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Learn how to generate a random
sample out of a population.
Change the bin settings of a histogram.
Compare the distribution of a sample
with the population.
Investigate how a value in the dataset
can influence the mean and median of
a sample.
4 | Lesson E.2
Example 1: Sample and population
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Use the catalog to generate your own sample out of a normal
population.
Draw a histogram and change the bin settings.
Compare the histogram with the normal distribution of the
population.
5 | Lesson E.2
Example 2: Mean and Median
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Calculate mean and median of the
sample.
Draw a dot plot and a box plot in
the same work area.
Slide points of the dot plot and see
how calculation and box plot
change.
6 | Lesson E.2
In this lesson you learned:
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How to generate a random sample.
To calculate statistics of a sample.
To draw a histogram and change the bin settings.
To draw a function above the histogram and compare the histogram with
the distribution of the population.
 To draw a box-plot and a dot-plot.
 To use the dynamic link between the plots and the data to explain the
difference between the mean and the median.
7 | Lesson E.2
Congratulations!
You have just finished lesson E.2!
8 | Lesson E.2