MCAT Math Question 36: Answer and Explanation

Home > MCAT Test > MCAT math practice tests

Test Information

Use your browser's back button to return to your test results.
Do more MCAT math practice tests.

Question: 36

6. Are there any outliers on the following box plot?

A. Yes; 1575 is an outlier.
B. Yes; 2600 is an outlier.
C. Yes; both 1575 and 2600 are outliers.
D. No; there are no outliers.

Correct Answer: C

Explanation:

Outliers can be determined with respect to the interquartile range, Q₃ ? Q₁. The interquartile range for this box plot is 2280 ? 2075, or 205. Values that are 1.5 × IQR below Q₁ or above Q₃ are considered outliers. 2075 ? 1.5 × 205 is approximately 2075 ? 300, or 1775 (actual = 1767.5). Therefore, 1575 is an outlier. 2280 +1.5 × 205 is approximately 2580 (actual = 2587.5). Therefore, 2600 is also an outlier.

Previous Next