Hp 50g Graphing Calculator Uživatelský manuál stáhnout pdf (Strana 577)

100

101

Page 18-10

Θ Press @CANCEL to return to the previous screen. Change the V-view and Bar

Width once more, now to read V-View: 0 30, Bar Width: 10. The new

histogram, based on the same data set, now looks like this:

A plot of frequency count, f

, vs. class marks, xM

, is known as a frequency

polygon. A plot of the cumulative frequency vs. the upper boundaries is

known as a cumulative frequency ogive. You can produce scatterplots that

simulate these two plots by entering the proper data in columns 1 and 2 of a

new

ΣDAT matrix and changing the Type: to SCATTER in the PLOT SETUP

window.

Fitting data to a function y = f(x)

The program 3. Fit data.., available as option number 3 in the STAT menu, can

be used to fit linear, logarithmic, exponential, and power functions to data sets

(x,y), stored in columns of the

ΣDAT matrix. In order for this program to be

effective, you need to have at least two columns in your

ΣDAT variable.

Example 1

– Fit a linear relationship to the data shown in the table below:

x 012345

y 0.5 2.3 3.6 6.7 7.2 11

1 2 ... 572 573 574 575 576 577 578 579 580 581 582 ... 886 887

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Hp 50g Graphing Calculator Uživatelský manuál Strana 577

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