STATISTICS ONE



Exercise No. 5.1

 

2. Following table gives age distribution of people sufering from 'Asthma due to air pollution in certain city. Find mean age of persons suffering from 'Asthma' by 'Direct Method'.

 

3. The measurements (in mm) of the diameters of the head of screws are given below: Calculate mean diameter of head of a screw of 'Assumed Mean Method'.

 

4. Below is given frequency distribution of marks (out of 100) obtained by the students. Calculate mean marks scored by a student by 'Assumed Mean Method'.

 

5. Following table gives frequency distribution of milk (in litres) given per week by 50 cows. Find average (mean) amount of milk given by a cow by 'Shift of Origin Method.'


6. Following table given frequency distribution of trees planted by different housing societies in a particular locality. Find the number of trees planted by housing society by using 'step deviation method'.


7. Following table gives age distribution of people suffering from 'Asthma due to air pollution in certain city. Find mean by 'Step Deviation method'.


8. The measurements (in mm) of the diameters of the head of screws are given below: Find mean by 'Step deviation method'.


9. Solve by 'Assumed Mean method. Following table gives frequency distribution of trees planted by different housing societies in a particular locality;. Find Mean.


10. Solve by 'Step Deviation Method. Below is the frequency distribution of marks (out of 100) obtained by the students. Find mean.

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