Casio ALGEBRA FX 2.0 Statistical Graphs and Calculations Manuel d'utilisateur télécharger pdf (Page 28)

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k Probability Distribution Calculation

You can calculate probability distributions for single-variable statistics with the RUN

•

MAT

Mode.

Press K6(g)1(PROB) to display a function menu, which contains the following items.

•{P(}/{Q(}/{R(} ... obtains probability {P(t)}/{Q(t)}/{R(t)} value

•{t(} ... {obtains normalized variate t(x) value}

•Probability P(t), Q(t), and R(t), and normalized variate t(x) are calculated using the

following formulas.

(t)Q

(t)R

(t)

Example The following table shows the results of measurements of the height

of 20 college students. Determine what percentage of the students fall

in the range 160.5 cm to 175.5 cm. Also, in what percentile does the

175.5 cm tall student fall?

Class no. Height (cm) Frequency

1 158.5 1

2 160.5 1

3 163.3 2

4 167.5 2

5 170.2 3

6 173.3 4

7 175.5 2

8 178.6 2

9 180.4 2

10 186.7 1

6-4-5

Performing Statistical Calculations

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Casio ALGEBRA FX 2.0 Statistical Graphs and Calculations Manuel d'utilisateur Page 28