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Answer it correctly please. I ll rate according. Ty-ped answer only and don't use AI tool. Descriptive statistics on raw data The following data represents

Answer it correctly please. I ll rate according. Ty-ped answer only and don't use AI tool.

Descriptive statistics on raw data The following data represents the marks of 15 students on an exam. 77.5 72 87.5 64.5 92 81.5 84 96 89.5 91 95.5 87 95.5 91.5 68 Make a dot plot of the data; Calculate the quartiles and the mean, Calculate the variance and standard deviation of this data.

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