If a test score is at the 90th percentile, then which of the following is true? A. This is the most commonly used score in the test.
B. This is in the bottom 10% of the distribution.
C. Only 10% of the test takers scored higher than this.

Option C

Only 10% of the test takers scored higher than this.

Step-by-step explanation:

The percentile of any distribution divides the distribution into various subsections or groups. We are dealing with the 90th percentile in this case. this means that the students are divided into 10 different score groups.

The students in the lowest score group can be found in the 10th percentile, while the students with the high scores can be found in the 90th percentile.

This makes option C correct. Only 10% of the test takers scored higher than those in the 90th percentile. Those will be students in the 100th percentile, which should be the largest in the list.

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answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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