Consider a set of 8 scores with the following central tendency: mean =72.5, median =73.5, mode = 75. a. If we were to subtract a constant value, such as 10 points, to each of the 8 scores in the dataset, how would this affect the mean? How about the median? (NOTE: you shouldn’t need to compute the mean and median to figure this out!) b. If the lowest score in this data set were to be recoded (changed) from 66 to 12, how would this affect the mean? How about the median? (Again, you don’t even need the original numbers to answer this. Just think about it; what would happen to the mean and median, generally?) c. Here are the data (with the lowest value being recoded from 66 to 12): 67, 75, 69, 72, 77, 12, 75, 79. Which measure of central tendency is the most appropriate for these data, and why?
Consider a set of 8 scores with the following
a. If we were to subtract a constant value, such as 10 points, to each of the 8 scores in the dataset, how would this affect the mean? How about the median? (NOTE: you shouldn’t need to compute the mean and median to figure this out!)
b. If the lowest score in this data set were to be recoded (changed) from 66 to 12, how would this affect the mean? How about the median? (Again, you don’t even need the original numbers to answer this. Just think about it; what would happen to the mean and median, generally?)
c. Here are the data (with the lowest value being recoded from 66 to 12): 67, 75, 69, 72, 77, 12, 75, 79.
Which measure of central tendency is the most appropriate for these data, and why?
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