Which of the following statements is incorrect? The median is the most appropriate measure of central tendency for highly-skewed data distributions. The variance is always greater than the standard deviation. A 10% trimmed mean of a given data is solved by removing the largest 10% and smallest 10% of the data, then computing for the mean. The coefficient of variation is the ratio between the mean and the standard deviation.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
1.
Which of the following statements is incorrect?
The
appropriate measure of
The variance is always greater than the standard deviation.
A 10% trimmed
The coefficient of variation is the ratio between the mean and the standard deviation.
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