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In Exercises, find the mean of the data summarized in the

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

Solution for problem 29BSC Chapter 3.2

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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Problem 29BSC

Problem 29BSC

In Exercises, find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means obtained by using the original list of data values, which areasfoüows: 35.9 years;

Age of Best Actress When Oscar Was Won

Frequency

20–29

27

30–39

34

40–49

13

50–59

2

60–69

4

70–79

1

80–89

1

Step-by-Step Solution:
Step 1 of 3

Problem 29BSC

Answer:

Step1 of 3:

We have the data summarized in the given frequency distribution.

Age of Best Actress When Oscar Was Won

Frequency

20–29

27

30–39

34

40–49

13

50–59

2

60–69

4

70–79

1

80–89

1

SUM

N=82

Step2 of 3:

We need to find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means obtained by using the original list of data values, which areasfoüows: 35.9 years.

Step3 of 3:

consider,

Age of Best Actress When
 Oscar Was Won

Frequency(f)

x

fx

20–29

27

24.5

661.5

30–39

34

34.5

1173

40–49

13

44.5

578.5

50–59

2

54.5

109

60–69

4

64.5

258

70–79

1

74.5

74.5

80–89

1

84.5

84.5

N=82

2939

Where x is the mid value of class intervals and it is calculated by

and so on..

The mean of the data summarized in the given frequency distribution is given by

    =

     = 35.8414

     35.8

This result is quite close to the mean of 35.9 years found by using the original list of data values.

Step 2 of 3

Chapter 3.2, Problem 29BSC is Solved
Step 3 of 3

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

The full step-by-step solution to problem: 29BSC from chapter: 3.2 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Since the solution to 29BSC from 3.2 chapter was answered, more than 385 students have viewed the full step-by-step answer. This full solution covers the following key subjects: frequency, means, data, actress, Best. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The answer to “In Exercises, find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means obtained by using the original list of data values, which areasfoüows: 35.9 years;Age of Best Actress When Oscar Was WonFrequency20–292730–393440–491350–59260–69470–79180–891” is broken down into a number of easy to follow steps, and 43 words.

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In Exercises, find the mean of the data summarized in the