The mean of the original data set is greater than the mean of the new data set.
The mean of the original data set is less than the mean of the new data set.
The means of both data sets are equal.
There is not enough information to compare the means.
Explanation
Correct answer: A.
Choice A is correct. It's given that the table shows an original data set of values. It's also given that a sixth value is added to create a new data set. The new data set consists of the values in the original data set and one additional value, . Since the additional value, , is less than any value in the original data set, the mean of the original data set is greater than the mean of the new data set.
Desmos solution:
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Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice B
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D
Choice D is incorrect and may result from conceptual or calculation errors.