Choose fit and data columns, Explore statistics – HP 39g+ User Manual

Page 97

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Statistics aplet

8-3

Choose fit and
data columns

4. Select a fit in the Symbolic setup view.

SETUP

-

SYMB

Select Linear

You can create up to five explorations of two-variable
data, named S1 to S5. In this example, we will create
just one: S1.

5. Specify the columns that hold the data you want to

analyze.

You could have entered
your data into columns
other than C1 and C2.

Explore statistics

6. Find the mean advertising time (MEANX) and the

mean sales (MEANY).

MEANX

is 3.3 minutes

and MEANY is about
$1796.

7. Scroll down to display the value for the correlation

coefficient (CORR). The CORR value indicates how
well the linear model fits the data.

9 times

The value is .8995.

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