Five Eretmochelys imbricata, a type of sea turtle, each have a nest. The table shows an original data set of the number of eggs that each turtle laid in its nest. Nest Number of eggs A 149 B 144 C 148 D 136 E 139 A sixth nest with 121 eggs is added to create a new data set. Which of the following correctly compares the means of the two data sets?
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
Choice A is correct. It’s given that the table shows an original data set of 5 values. It’s also given that a sixth value is added to create a new data set. The new data 121 set consists of the 5 values in the original data set and one additional value, . 121 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. 45 SAT PRACTICE TEST #5 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 2 Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.
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