HP 10bII+ User Manual

Statistical Calculations
131
Student's T Probability Lower Tail
Figure 11
To calculate the area under the Student's T Distribution curve, first enter the degrees of
freedom, followed by the t-value. It is a two-number function, so it may be entered as either
an in-line function, or by using Æ.
Example:
What is the lower tail probability associated with a Student’s T distribution with 8 degrees of
freedom (df
1
) with a t-value of -1. 8 6 ?
Table 12-21 Example of Student’s t (lower tail)
Keys Display Description
g]IJ7gSy4
.0499653 Calculates the lower tail
probability.
or, using
Æ:
gÆJ7gSy]I
Returns the same results.
Figure 12 Figure 13

HP 10bII+ Specifications

General

Memory registers	22
Keyboard type	Numeric
Battery type	CR2032
Auto power off	Yes
Battery technology	Lithium
Number of batteries supported	2
Type	Financial
Form factor	Pocket
Product color	Black
Digits	- digits
Display tilting	No
Display size (HxV)	63.5 x 16 mm
Display number of lines	1 lines
Display number of characters	12

Weight and Dimensions

Weight	85 g
Dimensions (WxDxH)	80.9 x 14 x 145 mm