4. (Statistics) statistics a statistic obtained by multiplying each possible value of a variable by its probability and then taking the sum or integral over the range of the variable adj 5. intermediate or medium in size, quantity, etc 6. occurring halfway between extremes or limits; average...
Explain the difference between the mean and the median in statistical analysis. Central Tendency: The central tendency is a numerical value that can be used as a representative of a data set. There are three types of central tendency. One example is the mode. This particular c...
Regarding the Sharpe ratio, after computing the expected return on an n-risky asset portfolio, its riskiness is obtained using the notion of mean quadratic difference. The decision-maker always maximizes his or her subjective utility connected with average quantities. In this paper, the notion of...
The standardized mean difference effect size between groups was weighted according to sample size, resulting in Hedges' g. Throughout, a positive effect size always indicated a result in favor of the treatment group in comparison with the control condition. Hedges' g was computed from means and ...
However, these mean differences can be divided by their respective standard deviations (SDs) to yield a statistic known as the standardized mean difference (SMD). The SD that is used as the divisor is usually either the pooled SD or the SD of the control group; in the former instan...
Cohen （科恩）统计的均值差
A statistic describing the location of a distribution; It set the norm for American homes Mean Without dignity of mind; destitute of honour; low-minded; spiritless; base. A mean motive It was mean of you to steal that little girl's piggy bank. Average Amount to or come to an average, ...
In the independent t-test, we get the mean for the group one and the mean for group two, and then, look at the difference between the means. p-value The p-values for z and t (back to the central limit theorem) is dependent on: whether the test is directional or non-directional...
Mean treatment effect size: Mean treatment effect size is defined as a statistic for representing the size of the effect of an experimental manipulation on behavior it is calculated by subtracting the mean of the control group from the mean of the treatment group and . . . Summary In psycholog...
average,norm- a statistic describing the location of a distribution; "it set the norm for American homes" arithmetic mean,expected value,first moment,expectation- the sum of the values of a random variable divided by the number of values ...