HP 35s Scientific 20, 20, 40, 400, Example:, Initial x, y, Description:, Keys:Display:, Corrected x, y, Statistical Operations, Reenters the last data pair

To correct statistical data:

1.Reenter the incorrect data, but instead of pressing , press . This deletes the value(s) and decrements n.

2.Enter the correct value(s) using .

￿If the incorrect values were the ones just entered, press to retrieve them, then press to delete them. (The incorrect y–value was still in the Y– register, and its x–value was saved in the LAST X register.) After deleting the incorrect statistical data, calculator will display the value of Y-register in line 1 and value of n in line 2.

Example:

Key in the x, y–values on the left, then make the corrections shown on the right:

Initial x, y	Corrected x, y
20, 4	20, 5
400, 6	40, 6

Keys:Display:

()

￿ 

 ￿ 

   



 

 ￿ 

 ￿ 

 

Description:

Clears existing statistical data.Enters the first new data pair.

Display shows n, the number of data pairs you entered. Brings back last x–value. Last y is still in Y–register. Deletes the last data pair.

Reenters the last data pair.Deletes the first data pair.

Statistical Operations 12-3