However, this does not take into consideration the variation in scores amongst the 50 students (in other words, the standard deviation). After all, if the standard deviation is 15, then there is a reasonable amount of variation amongst the scores when compared with the mean.
Quick Answer. Macrominerals are inorganic nutrients that the human body requires in large quantities because they carry out several critical bodily functions. The most important macrominerals include potassium, calcium, magnesium, sodium, chloride, sulfur and phosphorus.
1. a very small isotropic needlelike crystal, found usually in volcanic rocks. 2. a very small stone tooi or part of a tool, as a tooth of a primitive saw. â microlithic, adj. mineralogy. the branch of geology that studies the physical and chemical structures of minerals.