The following table shows the number of Tourists who visit different cities by using different modes of travel. Based on the data in the table, answer the question that follows. City-wise Distribution of Tourists City Modes of Travel Car Train Bus Bike Air Delhi 19200 18800 17200 19100 17400 Mumbai 18000 16600 17800 18700 18200 Chandigarh 15600 19400 16300 18100 14800 Dehradun 13200 18500 14200 17000 14800 Manali 14900 15900 15500 14900 18300 Jaipur 16800 16400 15900 14200 17300
What is the difference between the average number of Air travellers and the average number of Bus travellers to all the six cities?
650
First calculate the average of the Air column across all six cities, then the average of the Bus column, and finally find the difference between the two averages.
Air values: Delhi 17400, Mumbai 18200, Chandigarh 14800, Dehradun 14800, Manali 18300, Jaipur 17300.
Sum of Air = 17400 + 18200 + 14800 + 14800 + 18300 + 17300 = 100800. Average Air = 100800 / 6 = 16800.
Bus values: Delhi 17200, Mumbai 17800, Chandigarh 16300, Dehradun 14200, Manali 15500, Jaipur 15900.
Sum of Bus = 17200 + 17800 + 16300 + 14200 + 15500 + 15900 = 96900. Average Bus = 96900 / 6 = 16150.
Difference = 16800 - 16150 = 650.
Therefore, the difference between the average Air travellers and average Bus travellers is 650.
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