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.
The bases of 2 adjacent triangles form one interior angle of the hexagon. So the interior angle of a hexagon = 2 * 60Â° = 120Â°. So the angle formed by 2 sides of the hexagon = 120Â°. Draw a circle with its center at the point where 2 sides of the hexagon meet, and radius equal to the length of a side of the hexagon. The circle has 360Â°, and the angle formed by 2 sides of the hexagon = 120Â°. The 240Â° angle is inside the circle, but the 240Â° angle is outside the hexagon. If you extend on side of hexagon to the circle, you will cut the 240Â° angle in half. The 240Â° angle = 2 exterior angles of the hexagon.