In a positively skewed distribution, which of the following is the correct statement? a. The distance from the Xsmallest to Q1 is shorter than the distance from Q3 to Xlargest b. The distance from the Xsmallest to Q2 is shorter than the distance from Q2 to Xlargest c. The distance from Q1 to Q3 is twice the distance from the Xsmallest to Xlargest d. The distance from Q1 to Q2 is always smaller than the distance from Q2 to Q3 e. None of the suggested answers are correct

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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.