AVERAGE FREQUENCY - MAGAZINE - SOLVED SUM

Find the Average Frequency of the advertisement in the magazine using the data given below:

Readership: Magazine A = 35,000

                      Magazine B = 45,000

                     Magazine C = 55,000

Duplication: Magazine A with Mag B = 5000; with Mag C = 4000

                      Magazine B with Mag A = 5000; with Mag C = 2000

                     Magazine C with Mag A = 4000; with Mag B = 2000

Insertions: Mag A = 2; Mag B = 4; Mag C = 6

 

Solution:

MAGAZINE	READERSHIP	DUPLICATION MAG A	DUPLICATION MAG B	DUPLICATION MAG C	INSERTIONS
A	35,000	-	5000	4000	2
B	45,000	5000	-	2000	4
C	55,000	4000	2000	-	6

 

Average frequency – OTS / Net readership

 

OTS = Readership X Insertions

 

Mag A = 35000 X 2 = 70000

Mag B = 450000 X 4 = 180000

Mag C = 55000 X 6 = 330000

 

OTS = 580000

 

Net readership = Readership – Duplication

 

Mag A = 35000 – 9000 = 26000

Mag B = 45000 – 7000 = 38000

Mag C = 55000 – 6000 = 49000

 

Net Readership = 113000

 

 

Average Frequency = 580000/113000 = 5.13