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Question 5 (ii)
A study was conducted to find out the concentration of sulphur dioxide in the air in parts per million (ppm) of a certain city. The data obtained for 30 days is as follows:0.030.080.080.090.040.170.160.050.020.060.180.200.110.080.120.130.220.070.080.010.100.060.090.180.110.070.050.070.010.04

(ii) For how many days, was the concentration of sulphur dioxide more than 0.11 parts per million?

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Solution

For 8 days, the concentration of sulphur dioxideis more than 0.11 ppm.

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