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Solved: identify the class width, class midpoints, and

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 6BSC Chapter 2.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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10
5
Problem 6BSC

In Exercises 5–10, identify the class width, class midpoints, and class boundaries for the given frequency distribution. The frequency distributions are based on real data from Appendix B.

Step-by-Step Solution:
Step 1 of 3

Solution  6BSC

The class width

Class Midpoints are the values in the middle of the classes which will be computed by adding the lower class limit to the upper class limit and dividing the sum by 2.

Age (years) of Best actor when Oscar was won

Mid points

Class Width

20-29

10

30-39

10

40-49

10

50-59

10

60-69

10

70-79

10

Class Boundaries:

Similarly, for other classes calculated and given in the following table:

Age (years) of Best actor when Oscar was won

Class boundaries

20-29

20-0.5 - 29+0.5 = 19.5 - 29.5

30-39

30-0.5 - 39+0.5 = 29.5 - 39.5

40-49

40-0.5 - 49+0.5 = 39.5 - 49.5

50-59

50-0.5 - 59+0.5 = 49.5 - 59.5

60-69

60-0.5 - 69+0.5 = 59.5 - 69.5

70-79

70-0.5 - 79+0.5 = 69.5 - 79.5

Step 3 of 3

The complete table with all details is shown below:

Age (years) of

Best actor when

Oscar was won

Frequency

Lower

Class

Limits

Upper

Class

Limi1ts

Class Boundaries

Class

Mid

Points

Class

Width

Lower

Upper

20-29

1

20

29

Step 2 of 3

Chapter 2.2, Problem 6BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Solved: identify the class width, class midpoints, and