Sharp EL-9900 operation manual Normal probability plot N.P Normal distribution plot N.D

Chapter 10: Statistics & Regression Calculations

Broken line plot A broken line graph for the frequency distribution of sample (x)

(B.L.)Three types of points can be selected from circle, cross and square.

The correlation of points between histogram and broken line plot are shown on the right. (The broken line is displayed by connect- ing the upper left points of the bars of the histogram, as the upper left point of each bar represents

each class value in the histo- gram.)

The calculator can draw both a histogram and a broken line plot at the same time.

Normal probability plot (N.P.)

Normal distribution plot (N.D.)

Plots the variance of the standardized normal distribution with the statistical data (x) on the X axis or Y axis.

If the points plot almost linearly, it indicates that the data is of normal distribution.

The distance between the dots is set by the Xscl.

•The Xscl can be changed between 1 and 64. Use the Window Setting Menu to change the figure. (See page 57)

•You cannot set the frequency in the Normal probability plot. The statistical data must be created using only one list without splitting into the data and frequency.

A normal distribution curve of sample(x)

The x-axis is in the range of

Xmin to Xmax.

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