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ECON 233: ECONOMIC STATISTICS WITH SOLUTIONS
ECON 233: ECONOMIC STATISTICS //ECON 233: ECONOMIC STATISTICS
[Show more]ECON 233: ECONOMIC STATISTICS //ECON 233: ECONOMIC STATISTICS
[Show more]Marks shall be awarded based on clarity, correctness and detail. Do a good job! 
a) The table below shows distribution of marks in a class of students. 
Marks 0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 
No. of 
students 
11 16 25 50 12 45 29 10 15 40 
Determine: 
i. Mean 
ii. Modal ...
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Add to cartMarks shall be awarded based on clarity, correctness and detail. Do a good job! 
a) The table below shows distribution of marks in a class of students. 
Marks 0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 
No. of 
students 
11 16 25 50 12 45 29 10 15 40 
Determine: 
i. Mean 
ii. Modal ...
Starting with MCT of 
Ungrouped Data 
Let us have a look at some example of ungrouped data 
Arithmetic Mean 
Harmonic Mean 
Calculate the HM of: 
1. 25, 65, 70, 55 Ans: 45.53 OR
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Add to cartStarting with MCT of 
Ungrouped Data 
Let us have a look at some example of ungrouped data 
Arithmetic Mean 
Harmonic Mean 
Calculate the HM of: 
1. 25, 65, 70, 55 Ans: 45.53 OR
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