Explain the difference between a population and a sample., Ask an Expert

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You should work each of the following on your own, then review the solutions guide. DO NOT look at the solutions guide first.

1. Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula? mean; median; mode; range; quartiles; variance; standard deviation.
2. The following numbers represent the weights in pounds of six 7-year old children in Mrs. Jones' 2nd grade class. {25, 60, 51, 47, 49, 45}
Find the mean; median; mode; range; quartiles; variance; standard deviation.
3. If the variance is 846, what is the standard deviation?
4. If we have the following data
34, 38, 22, 21, 29, 37, 40, 41, 22, 20, 49, 47, 20, 31, 34, 66 Draw a stem and leaf. Discuss the shape of the distribution.
5. What type of relationship is shown by this scatter plot?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9416795

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