Ex – 13.1 Que No. 7 - First Letter Institute

Ex – 13.1 Que No. 7

Q.7) To find out the concentration of SO₂ in the air (in parts per million, i.e., ppm), the data was collected for 30 localities in a certain city and is presented below:

Find the mean concentration of SO₂ in the air

Solution:-

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