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  1. C

    whats a design of investigation?

    the question is suggest ways to improve the design of this investigation
  2. C

    do these data sets show a normal distribution?

    im not sure if it shows a normal distribution.. please explain, thanks! 1. mean : 185.42 median: 185 mode:180 range of data: 85 standard deviation: 18.05 2. mean: 192.4 median:183.5 mode:182 range of data: 77 standard deviation: 16.5
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