Quick start manual

28 Getting Started
Using the following data, find the means of
x and y, the sample standard devia-
tions of
x and y, and the y-intercept and the slope of the linear regression fore-
cast line. Then, use summation statistics to find
xy.
v¡
Opens editor for reviewing/editing
statistical data.
\k \«
Means of x and y.
\T \«
Mean of x weighted by y. Also
calculates
b, coefficient.
\h \«
Sample standard deviations of x and
y.
\e \«
Population standard deviations of x
and
y.
y-data \Z \«
Estimate of x and correlation
coefficient.
x-data \W \«
Estimate of y, slope and m coefficient.
]L
Permits selection of six regression
models or a best fit. Default is linear.
x-data
246
y-data
50 90 160
Table 1-30 Statistics keys
Keys Description
Σ