MCAT Math Question 44: Answer and Explanation
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Question: 44
14. The following histogram:
I. contains a bimodal distribution.
II. should be analyzed as two separate distributions.
III. contains one mode.
- A. II only
- B. I and II only
- C. I and III only
- D. I, II, and III
Correct Answer: D
Explanation:
Because the histogram contains two peaks with a valley in between, it is a bimodal distribution. The color separation of two distinct populations provides evidence that there is a qualitative difference in the data between the two peaks, thus the data should be analyzed according to gender. There is indeed only one mode, at 5'6". This is the measurement with the largest number of corresponding data points.