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Power Regression<#07>
Inverse Regression<#08>

k Statistical Calculation Examples

This section provides some actual examples of statistical calculation examples as they are performed on your calculator.

Example 1: The nearby table shows the pulse rates of 50 students who attend a high school for boys that has a total enrollment of 1,000 students.

1 Determine the mean and standard deviation of the sample data.

2 Assuming that the population distribution is a normal distribution, determine the distribution probability of students with pulse rates of 70 of greater.

Operation ProcedureSelect the SD Mode: N3(SD)Select FreqOn for the statistical frequency setting: 1N(SETUP)c5(STAT)1(FreqOn)Input the pulse rate data into the X-column:

Pulse Rate

Students

54 – 56

1

56 – 58

2

58 – 60

2

60 – 62

5

62 – 64

8

64 – 66

9

66 – 68

8

68 – 70

6

70 – 72

4

72 – 74

3

74 – 76

2

55E57E59E61E63E65E 67E69E71E73E75E

Input the number of students data into the FREQ-column: ce1E2E2E5E8E 9E8E6E4E3E2E

(1)Mean and Standard Deviation Obtain the mean:z1(/COMP) z7(STAT)2(VAR)2(o)EObtain the sample standard deviation:z7(STAT)2(VAR)4(xσn–1)E(2) Distribution Probabilityz7(STAT)3(DISTR)3(R()70 z7(STAT)3(DISTR)4('t))E

E-84