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1i1 50i, 2i1 65i, 3i1 60i – HP 30b Business Professional Calculator User Manual

Page 81: 4i1 75i, 5i1 70i, Z<< i

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Statistical Operations 73

Table 12-3 Statistics Example

Keys

Display

Description

:y

Opens Data menu.

1I1
50I

Inputs values for

x

(1) and

y

(1).

2I1
65I

Inputs values for

x

(2) and

y

(2).

3I1
60I

Inputs values for

x

(3) and

y

(3).

4I1
75I

Inputs values for

x

(4) and

y

(4).

5I1
70I

Inputs values for

x

(5) and

y

(5).

:z

Opens Stats menu.

Opens Descriptive sub-menu.

<<

Displays average

y

.

:z<<
I

Opens Predictions sub-menu.
NOTE: this example performs calculations
based on a linear

(a*x+b)

regression line.

<7I

Inputs 7 as the Prediction

x

value (month 7).

<=

Calculates Prediction

y

value (sales at

month 7).

See also other documents in the category HP Tablet: