Consider the following two data sets.
Notice that each value of the second data set is obtained by multiplying the corresponding value of the first data set by 2. Calculate the mean for each of these two data sets. Comment on the relationship between the two means.
Answer to relevant QuestionsThe trimmed mean is calculated by dropping a certain percentage of values from each end of a ranked data set. The trimmed mean is especially useful as a measure of central tendency when a data set contains a few outliers. ...When is the value of the standard deviation for a data set zero? Give one example. Calculate the standard deviation for the example and show that its value is zero. Refer to Exercise 3.20, which listed the number of colors of M&Ms that each of the 14 Fun Size bags contained. Those data are reproduced here: Calculate the range, variance, and standard deviation. The following data represent the total points scored in each of the NFL Super Bowl games played from 2001 through 2012, in that order: Compute the range, variance, and standard deviation for these data. Using the population formulas, calculate the mean, variance, and standard deviation for the following grouped data.
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