HP F2216A hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 147
Initial x, y, Corrected x, Display, Description, number of data pairs
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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.) 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, 4 400, 6 20, 5 40, 6 Keys: { c {´} 4 20 6 400 { { 6 40 4 20 { 5 20 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. Reenters the first data pair. There is still a total of two data pairs in the statistics registers. Statistical Operations 11-3