Question

Q6. (A) With the help of given statistical data, prepare a compound bar graph and answer the following
questions:
6
Year
Import
Export
1909-10
152,994
127,647
1910 - 11
197,356
180,458
1911-12
256,038
226,243
1912-13
242,579
223,149
1. What is the class interval in years?
2. What changes were taken in Brazil's imports and exports from 1909 to 1913.
3. In which year the difference between exports and imports of Brazil's trade was least?​

Answer 1

Answer:

I can't understand this