HP 10B - Manual (Page 23)

Using the following data, find the mean of j; aiidy, the sample standard
deviation of
at
andy, and they-intcrcept and the slope of the linear regres­
sion forecast line. Then, use summation statistics to find n and Sty.
x-data 2 4 6
y-data 50 90 160
Keys:
■fern
2iiNPUTl50
4 fiNPDTl90
SfiNRJTl 160
IdiD
mna
■dim
mm
0|[^
mm
iRCLl 4
Display:
0.00
1.00
2.00
3.00
4.00
100.00
2.00
55.68
-
10.00
27.50
3.00
1,420.00
Description:
Clears stalistics registers.
Enters first .V,)» pair.
Enters second pair.
Enters third pair.
Displays mean ofx.
Displays mean of>'.
Displays .sample standard
deviation of.v.
Displays sample standard
deviation ofy.
Displays j'-inlcrccpl of
regression line (predicted
y value for.r *= 0).
Displays slope of regres­
sion line.
Displays n, number of
data points entered.
Displays sum of the
products ofjc- and
y-valucs.
20 At a Glance...