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Solution - Presentation of Data

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Question

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:-

0.030.080.080.090.040.17
0.160.050.020.060.180.20
0.110.080.120.130.220.07
0.080.010.100.060.090.18
0.110.070.050.070.010.04

(i) Make a grouped frequency distribution table for this data with class intervals as 0.00 - 0.04, 0.04 - 0.08, and so on.

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

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Solution for concept: Presentation of Data. For the course 8th-10th CBSE
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