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Meaures of dispersion classified into two

• true

• false

Measures of Dispersion in Absolute meaures is

• Range, Quartile deviation,Standard deviation, Lorenze curve

• standard deviation, Lorenze curve

• Range, Quartile deviation

• Standard deviation, Lorenze curve

write Co-efficient of Range

Mean deviation in individula series formula

Compute range and co-efficient of range

20 23 25 28 32 48 49 62

Calculate Quartile Deviation and its co-efficient

480 650 370 600 300 240 1200

Calculate Standard deviation of

120 100 160 100 220 130 150 170 150 200

• 38

• 36

• 37.68

• 34

Standard Deviation formula under assumed mean method

Write the formula of Standard deviation of continious series

Co-efficient of variation formula