Exercise

Exercise 1

• Weight 52 medical student are given.

Tabulation the data in appropriate class

interval usually tally mark system( Weight

are given in Kg).

51 53 52 39 58 48 45 56 62

64 67 66 42 48 43 44 45 47

52 54 50 49 38 38 39 32 34

36 38 42 43 48 49 50 51 52

30 30 31 32 45 45 47 46 48

49 58 67 33 34 36 38

• Present the data in form of histogram,

frequency polygon.

Exercise 2• Population of different countries are given .

Draw a pie diagram.

Country Population India 100 croresChina 132 crores

Indonesia 21 croresUSA 28 crores

Pakistan 15 croresSri lanka 1.8 crores

Exercise 3

4 15 30 25 30 35 10 40 56 16 14 30

Calculate mean, median, mode, range and standard deviation.

Exercise 4• Calculate mean and SD of following-

Age Group No. Of Employs 20-25 2625-30 4430-35 6035-40 10140-45 10945-50 8450-55 6655-60 10

Exercise 5

• Calculate chi- square given below data

Result Brand A Brand B Brand C Brand D No Damage Of Teeth 9 13 17 11

Slight Damage 63 70 85 82

More Damage 28 37 48 37

• Mention the measure of central tendency

Exercise 6

Class interval

Frequency

60-64 255-59 450-54 345-49 540-44 635-39 4