. The following data give the 2010 gross domestic product (in billions of dollars) for al 50 states. The data entered in alphabetical order by state (Source: Bureau of Economic Analysis).

173 49 254 103 1901 258 237 62 748 403
67 55 652 276 143 127 163 219 52 295
379 384 270 97 244 36 90 126 60 487
80 1160 425 35 478 148 174 570 49 164
40 255 1207 115 26 424 340 65 248 39
Calculate the mean and median for the data. [16 marks]
Are these values of the mean and median, sample statistics or population parameters? Explain.

2 answers

For mean, you add up all numbers and divide by the size of the population.

For median, you need to sort them in increasing order, and take the mean of the two middle numbers (average between 25th and 26th values for N=50).

Since the data represent the whole population, they are not sample statistics.
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