MEASURES OF CENTRAL TENDENCY

Measures of Central Tendency



BUS306 - Quantitative Reasoning

Module 5 - SLP Measures of Central Tendency

The data that I am going to collect is the number of incoming text messages that I receive in a day, divided into AM and PM segments.  

Text Messages Received

AM

PM

4

3

7

0

1

14

3

2

1

4

0

0

4

2

5

6

9

4

2

3

Day

AM/PM

Data Collected

Data Minus Mean

Numbers in (3) Squared

 

(1)

(2)

(3)

(4)

1

Am

4

0.3

0.09

2

Am

7

3.3

10.89

3

Am

1

-2.7

7.29

4

Am

3

-0.7

0.49

5

Am

1

-2.7

7.29

6

Am

0

-3.7

13.69

7

Am

4

0.3

0.09

8

Am

5

1.3

1.69

9

Am

9

5.3

28.09

10

Am

2

-1.7

2.89

1

PM

3

-0.7

0.49

2

PM

0

-3.7

13.69

3

PM

14

10.3

106.09

4

PM

2

-1.7

2.89

5

PM

4

0.3

0.09

6

PM

0

-3.7

13.69

7

PM

2

-1.7

2.89

8

PM

6

2.3

5.29

9

PM

4

0.3

0.09

10

PM

3

-0.7

0.49

Sum

74

 

218.2

Mean

3.7

553.018

Variance

Median

3

23.516

Standard Deviation

Mode

4

Measures of central tendency (mean, median and mode) serve as points of reference for interpreting Measures of Central Tendency and Dispersion provides a basis for conducting further tests on the data. The purpose of a measure of central tendency is to summarize in one number the typical value or ...