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Determine the variance and standard deviation

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Reference no: EM13100576

The following are the grades of 15 students in a calculus class:

69 66 71 74 67 74 62 64 62 70 71 79 69 71 83

a) Draw a box-and-whisker plot for the data set

b) Find the variance and the standard deviation. please help me as soon as possible please!!! thank you

Reference no: EM13100576

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