Mean М (a) For these data, which measures of central tendency take more than one value? Choose all that apply. OMedian OMode ONone of these measures Mean М (b) Suppose that the measurement 21 (the smallest measurement in the data set) were OMedian replaced by 12. Which measures of central tendency would be affected by the change? Choose all that apply. OMode None of these measures Mean (c) Suppose that, starting with the original data set, the smallest measurement were OMedian removed. Which measures of central Mode tendency would be changed from those of the original data set? Choose all that apply. None of these measures (d) Which of the following best describes the ONegatively skewed distribution of the original data? Choose only OPositively skewed ORoughly symmetrical one.
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.
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