Hip flexor strain occurs from overuse of the muscles that help you flex your. knee or do high kicks. This injury occurs in bicyclist, athletes who jump or. run with high knee kicks, athletes like soccer players, who do forceful. kicking activities, and people who practice, and people who practice the. martial arts.
In statistics , a spurious relationship ( see also spurious correlation and spurious regression ) is a mathematical relationship in which two or more events or variables are not causally related to each other ( i.e. they are independent ) , yet it may be wrongly inferred that they are , due to either coincidence or the presence of a certain third , ...
Best Answer: Discrete, in this sense, means the opposite of continuous. An example of a continious variable would be the speed of a car. It can be anywhere between 0 and its maximum speed. A discrete variable, on the other hand, would be the gear the car is in. It can be park, reverse, neutral, or drive, but not between any of those gears. So for a hydrogen atom, what this means is that its energy level can be one of a distinct number of levels. It can't be between two of those levels. Source(s):