The percentile rank of a score is the percentage of scores in its frequency distribution that are equal to or lower than it. For example, a test score that is greater than or equal to 75% of the scores of people taking the test is said to be at the 75th percentile rank.ome percentile ranks are closer to some than others. Percentile rank 30 is closer on the bell curve to 40 than it is to 20. The mathematical formula is. where c â is the count of all scores less than the score of interest, Æ i is the frequency of the score of interest, and N is the number of examinees in the sample.
Best Answer: 1. Find the center of the circle. 2. Set your compass to the radius of the circle. 3. Pick one point on the circumference of the circle and use your compass to divide the circumference into six equal pieces. 4. Draw those six radii. 5. Bisect each one of those angles.(Or bisect just one of the angles and then transfer that angle to the other sixths.. Set your compass to the radius of the circle. 3. Pick one point on the circumference of the circle and use your compass to divide the circumference into six equal pieces. 4. Draw those six radii. 5. Bisect each one of those angles.
Since there IS a need for more precise directions, the circle of a compass face is split into 360 marks called degrees. For rough directions, go ahead and use North or NorthWest. But, for finding your way or locating destinations in the wild, use degrees as you'll see in a bit.eading and Bearing are pretty much the same thing. The image above is a heading of about 250 degrees. Using your compass, take a few bearings. Move your body until the direction-of-travel arrow points at the following items and then turn the dial until RED is in the Shed.