HP 20b Consultant Financial manual 150 165 160 175 170 Statistics Example

Statistical Operations

Sales for the last five months are represented by the pairs of values shown below, with the month number as x, and the sales values as y. Enter these into the Data menu. Using the Stats menu for Predictions, predict sales for month seven. What is the slope and y-intercept of the linear regression line? What is the sum of all the y values?

Table 3-1Months and Sales Numbers

		Month		Sales Values
	1			150
	2			165
	3			160
	4			175
	5			170
Table 3-2	Statistics Example
Keys			Display	Description

:y

Opens Data menu starting with the current value for X(1).

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