Question

The cost of 250 articles is given below:
Cost (in ₹ ) No. of articles
less than 20 = 22
less than 30 = 40
less than 40 = 75
less than 50 = 190
less than 60 = 228
less than 70 = 250
Construct a frequency distribution table for
the data given above. Also, answer the
following:
(i) how many articles cost from 30 to less
than 50 ?
(ii) how many articles have cost at most
40 ?
(iii) how many articles have cost at least
50 ?​

Answer 1

Answer: Converting the frequency distribution into less than cumulative frequency distribution

Marks No. of Students

less than 10 7

less than 20 17

less than 30 40

less than 40 91

less than 50 97

less than 60 100

According to graph median = 34 marks