HP 33s Limitations on Precision of Data, ˆ ¸ˆ, 11–9, r, m, b, (70, y), Statistical Operations 11–9

y

8.50

					X
7.50					(70, y)
	r = 0.9880
6.50			m = 0.0387
5.50	b = 4.8560					x
4.50
0	20	40		60	80

What if 70 kg of nitrogen fertilizer were applied to the rice field? Predict the grain yield based on the above statistics.

	Keys:		Display:
‡70		)
		_
	{ ˆ }	ˆ ¸ˆ		T P E	
		º
	¸

) 

Description:

Enters hypothetical x–value.

The predicted yield in tons per hectare.

Limitations on Precision of Data

Since the calculator uses finite precision (12 to 15 digits), it follows that there are limitations to calculations due to rounding. Here are two examples:

Statistical Operations 11–9