Question

Mathematics: In these Covid times, the environmental

conditions on our Earth have changed too.

Refer to the table given below which shows the Air

Quality Index over Indian cities before and during the

lockdown period:

(i) Draw a double bar graph for each city to show the

change in AQI.

(ii) Find out the range of air quality from the given data.

(iii) Find out the Arithmetic mean of air pollution levels

in November2019 and March 2020.

Location AQI (Air Quality Index)

November 2019 March 2020

Delhi 494 124

Mumbai 69 64

Kolkata 141 108

Chennai 107 64​

Answer 1

Answer:

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Answer 2

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