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.
The body needs larger amounts of macro-minerals than trace minerals. The macro-minerals include calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur, and can be found in the body in abundance. Trace minerals, such as selenium and chromium exist in the body in limited quantities.