Tomorrow is my math annual examination,  so please answer both the bits in the below question as soon as possible.  
Q. Discuss with your friends and give
(a) Two situations where mean would be an appropriate representative value to use, and
(b) Two situations where mode would be an appropriate representative value to use.

Dear Student,

Please find below the solution to the asked query:

a ) Consider the first statement. Suppose the number of chapattis needed by each person is 2, 3, 2, 3, 2, 1, 2, 3, 2, 2, 4, 2, 2, 3, 2, 4, 4, 2, 3, 2, 4, 2, 4, 3, 5

The mode of the data is 2 chapattis. If we use mode as the representative value for this data, then we need 50 chapattis only, 2 for each of the 25 persons. However the total number would clearly be inadequate. Mean would be an appropriate representative value .

b ) Look at the following example

To find out the weekly demand for different sizes of shirt, a shopkeeper kept records of sales of sizes 90 cm, 95 cm, 100 cm, 105 cm, 110 cm.. Following is the record for a week:

Try to find second situation for both cases by yourself for more clarification and if you still have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.


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