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Twenty air samples were obtained and the carbon monoxide concentrations were recorded. the results in ppm (parts per million) were:

9.3 10.7 8.5 9.6 12.2 15.6 9.2 10.5 9.0 13.2
11.0 8.8 13.7 12.1 9.8 10.5 11.2 9.9 12.4 10.9

(a) find out the mean, the median and the standard deviation.(b) Obtain the mean , the median, and the standard deviation in the units parts per thousand without recalculating everything from scratch.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9100714

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