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TheStatistics Keys
You can enter data into the statistics registers by using the
key. Before you can analyze the data, however, you must
press the
key to display the STAT FUNCTIONS menu.
Pressing
redefines the function keys and enables you
to select the operation you wantto perform.
The
Statistics
Menu
Whenyoupress
, the STAT FUNCTIONS menuis
displayed. You can thenuse the function keysto select
from thestatistics functions shown below.
<CLR>
Clears the statistics registers and enables
youto select 1- or 2-variablestatistics
<FRQ>
Enters numberof occurrencesofidentical
data values; entered as data when you press
+], or removed whenyoupress [INV]
<MN>
Calculates the mean
<s>
Calculates sample standard deviation
[INV] <s>
Calculates population standarddeviation
——F
Displays the menuselections shown below
<m-b>
Calculates slope/intercept(linear
regression)
cao)
Calculates correlation coefficient(linear
regression)
<y>
Predicts y value(linear regression)
[INV] <y>
Predicts an x value (linear regression)
<SHW>
Displays sums calculated during data entry
<-->)
Displaysthe previousselections shown
above
Statistics Operations
3-3
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