Question

The annual profits earned by 60 shops of a shopping complex in a
ed by ou shops of a shopping complex in a given locality is described
following distribution:
Profit (in thousands)
Class Frequency
More than 10
More than 20
More than 30
More than 40
More than 50
More than 60
More than 70
Calculate median profit.​

Answer 1

Answer:

35

Step-by-step explanation:

Class Frequency

More than 10    -60

More than 20   -56

More than 30    -32

More than 40     -28

More than 50     -20

More than 60     -14

More than 70     -6

By drawing a graph with less than ogive, the two ogives intersect at (35, 30)

Hence, Median = 35

Answer 2

Answer:

Median is 35

Step-by-step explanation:

Class Interval Frequency Cumulative Frequency

10-20 4 4

20-30 24 28

30-40 4 32

40-50 8 40

50-60 6 46

60-70 8 54

70-80 6 60

n/2 = 60/2 = 30

Median class is 30-40

Median = l +[ ( n/2 - cf) / f ] x h

= 30 + [ (30 - 28) / 4 ] x 10

= 30 + [ ( 2 ) / 4 ] x 10

= 30 + [1/2] x 10

= 30 + 5

Median = 35