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.
ratio of squares to circles is 3/6; ratio of squares to circles is 3 to 6; ratio of squares to circles is 3:6 ; There are still other ways to make the same comparison, by using equal ratios. To find an equal ratio, you can either multiply or divide each term in the ratio by the same number (but not zero). For example, if we divide both terms in the ratio 3:6 by the number three, then we get the equal ratio, 1:2. Do you see that these ratios both represent the same comparison? Some other equal ratios are listed below. To find out if two ratios are equal, you can divide the first number by the second for each ratio. If the quotients are equal, then the ratios are equal. Is the ratio 3:12 equal to the ratio 36:72? Divide both, and you discover that the quotients are not equal. Therefore, these two ratios are not equal.