Pam K.

asked • 10/16/12

statistics

I have done a survey and I need to calulate the mean, median and mode for my data.  To try and determine an average divorce rate I interviewed 15 married people, 8 females, 7 males.  I asked each person how many times they had been divorced.  10 people said 0, and 5 people said 1.  I am unsure how to caculate the mean, median and mode with this data.  Please help.

Erin C.

The mean is the average.  This is where you find the sum of your data, and then divide by the number of people you surveyed.


(10x0) + (5x1) = 5

5/15 = 1/3 = 0.33

 

To find the median you list your data in ascending order, and find the number that is is the middle.

 

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1

 

In this case, the median would be 0.

If there were an even number of data points, for example if there were 4 who said 0, 6 who said 2, you would find the mean of the two center numbers.

 

0, 0, 0, 0, 2, 2, 2, 2, 2, 2

2 + 2 = 4

4/2 = 2

In this case the median would be 2.

 

The mode is found by determining which data point is most frequently expressed.  So, in the case where 10 said 0, and 5 said 1, the mode would be 0.

In the second example I suggested where 4 said 0, and 6 said 2, the mode would be 2.

 

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06/22/13

2 Answers By Expert Tutors

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Robert C. answered • 10/16/12

Dr. Robert can help you with Math and Science

Pam K.

Thank you.

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10/16/12

Crystal G. answered • 10/16/12

Bilingual Math/Spanish Ivy League Tutor o' Awesomeness

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