Statistics 2Var app
85
You can create up to five explorations of two-variable
data, named
S1
to
S5
. In this example, we will create
just one:
S1
.
Explore statistics
5. Find the correlation, r, between advertising time and
sales.
M
The correlation is
r
=0.8995…
6. Find the mean
advertising time ( )
and the mean sales
( ).
The mean advertising time, , is approximately 3.3
minutes.
The mean sales, , is approximately $1,796.
Setup plot
7. Change the plotting range to ensure all the data
points are plotted (and select a different point mark, if
you wish).
S
SETUP-PLOT
\
-
100
E
4000
E
x
y
x
y
Содержание 39gII
Страница 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Страница 2: ...Printing History Edition 1 November 201 1 ...
Страница 32: ...22 Getting started ...
Страница 58: ...48 Apps and their views ...
Страница 70: ...60 Function app ...
Страница 80: ...70 Solve app ...
Страница 132: ...122 Parametric app your own table and the split screen functionality available in the Function app ...
Страница 136: ...126 Polar app ...
Страница 140: ...130 Sequence app ...
Страница 148: ...138 Finance app ...
Страница 152: ...142 Linear Solver app ...
Страница 218: ...208 Matrices ...
Страница 226: ...216 Notes and Info ...
Страница 238: ...228 Variables and memory management ...
Страница 318: ...308 Programming ...
Страница 340: ...330 Reference information ...
Страница 346: ...vi Product Regulatory Information ...