**Exercise No. 5.1**

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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'.

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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'.

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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'.

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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.'

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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'.

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

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

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

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

Exercise No. 5.2

Exercise No. 5.2

### 1. Following is the distribution of the size of certain farms from a taluka (tehasil):

**2. Below is given distribution of profit in Rs. per day of a shop in certain town: Calculate median profit of a shop.**

3. Following table shows distribution of monthly expenditure (in Rs.) done by households in a certain village on electricity: Find median expenditure done by a household on electricity per month.

3. Following table shows distribution of monthly expenditure (in Rs.) done by households in a certain village on electricity: Find median expenditure done by a household on electricity per month.

4. The following table shows ages of 300 patients getting medical treatment in a hospital on a particular day. Find median age of a patient.

4. The following table shows ages of 300 patients getting medical treatment in a hospital on a particular day. Find median age of a patient.

Exercise No. 5.3

Exercise No. 5.3

**1. The weight of coffee (in gms) in 70 packets is given below: Determine the modal weight of coffee in a packet.**

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2. Forty persons were examined for their Hemoglobin % in blood (in mg per 100 ml) and the results were grouped as below: Determine modal value of Hemoglobin % in blood of a person.

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3. The maximum bowling speed (Kms/hour) of 33 players at a cricket coaching centre is given below.

**Exercise No. 5.4**

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1. For a certain frequency distribution the values of Mean and Mode are 54.6 and 54 respectively. Find the value of median.

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2. For a certain frequency distribution the values of Median and Mode is 95.75 and 95.5 respectively, find the mean.