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What is the definition of T score?
T score was originally given to a type of normalized score based on a group of unselected pre-adolescents. Notwithstanding, it has come to refer to any normally distributed standard scores that has a mean of 50 and a standard deviation of 10. L F C
Why is the standard deviation of a distribution of means smaller than the standard deviation of the population from which it was derived?
The reason the standard deviation of a distribution of means is smaller than the standard deviation of the population from which it was derived is actually quite logical. Keep in mind that standard deviation is the square root of variance. Variance is quite simply an expression of the variation among values in the population. Each of the means within the distribution of means is comprised of a sample of values taken randomly from the population. While it is possible for a random sample of multiple values to have come from one extreme or the other of the population distribution, it is unlikely. Generally, each sample will consist of some values on the lower end of the distribution, some from the higher end, and most from near the middle. In most cases, the values (both extremes and middle values) within each sample will balance out and average out to somewhere toward the middle of the population distribution. So the mean of each sample is likely to be close to the mean of the population and unlikely to be extreme in either direction. Because the majority of the means in a distribution of means will fall closer to the population mean than many of the individual values in the population, there is less variation among the distribution of means than among individual values in the population from which it was derived. Because there is less variation, the variance is lower, and thus, the square root of the variance - the standard deviation of the distribution of means - is less than the standard deviation of the population from which it was derived.
Which class maths come in bba entrance?
classes from 8th to 11th grade Maths comes in BBA entrance examination.
Why wasn't it necessary to come up with a standard system of measurement?
people have realised the importance .so there is SI system
What is example of supporting details?
In standard academic writing, just one example of "supporting details" can come from a paper that is arguing for higher salaries for teachers. As one reason "for" higher salaries, this paper might claim that people who receive higher salaries put in more time and energy to their work, whatever that work might be. Thus, the "supporting details" here might come from studies on salary-and-productivity connections, from interviews with teachers who comment positively on how much more work they would be willing to do if they would receive higher pay, and an anecdote from the writer's own teaching experience that supports the basic claim being made.
