Casio fx-9750G Statistical Graphs and Calculations Manual do Utilizador descarregar pdf (Página 27)

309

• Probability P(

t), Q(t), and R(t), and normalized variate t(x) are calculated using

the following formulas.

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

1. In the STAT Mode, input the height data into List 1 and the frequency data into

List 2.

List 1 List 2

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

P(t)Q(t)R(t)

Performing Statistical Calculations 18 - 6

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