That means that the majority of people have an IQ score between 85 and 115. 1  1 to 24: Profound mental disability. 2  25 to 39: Severe mental disability. 3  40 to 54: Moderate mental disability. 4  55 to 69: Mild mental disability. 5  70 to 84: Borderline mental disability. 6  85 to 114: Average intelligence. 7  115 to 129: Above average; bright.
(September 2015) (Learn how and when to remove this template message) In education, marking on a curve (BE) or grading on a curve (AE) (also referred to as curved grading, bell curving, or using grading curves) is a method of assigning grades designed to yield a Gaussian distribution curve among the students in a class.
contents form a smooth curve, called the compaction curve, which is used to obtain the optimum. water content and maximum dry density. The two standardized tests in use today, the standard. and modified Proctor tests, differ only by the amount of compactive energy. In practice, the. standard or modified Proctor test is conducted on a soil and specifications are written stating: 1) that the soil moisture content during compaction should be within a specified percent of the. optimum water content; and 2) that the dry density of the compacted soil should be 90 to 100.