From the following distribution of monthly income of 60 people in a company. Draw less than and more than ogive curve and find the median on the graph.Find the median using the formula. Please can I get the answer quickly.
Monthly income in thousand number of people
10-20 6
20-30 9
30-40 10
40-50 15
50-60 12
60-70 8
I tried this but I am getting median in graph differently than the value I am calculating using the formula.

Item
(X)
Frequency
(f)
Cumulative Frequency
(c.f)
10-20 6 6
20-30 9 15
30-40 10 25
40-50 15 40
50-60 12 52
60-70 8 60
  f=N =60  

Median class is given by the size of the N2th item, i.e. the 602th item, which is the 30th item.
This corresponds to the class interval 40-50, so this is the median class.
Median M=l1+N2-c.ff×iMedian M=40+602-2515×10Median M=40+5015Median (M)=43.33

  • 1
What are you looking for?