The data below are the number of nuclear power plants operating in each of a sample of 10 states. Complete parts a through c. 6. 7 3 1 2 10 1 4 1 12 Select the correct choice below and fill in any answer boxes in your choice. A. Mode = (Type an integer or a decimal. Use a comma to separate answers as needed.) B. There is no mode. What effect does dropping this measurement have on the measures of central tendency found in part a? A. The mean increases, the median stays the same, and the mode stays the same. B. The mean increases, the median decreases, and the mode increases. C. The mean decreases, the median decreases, and the mode stays the same. D. The mean decreases, the median increases, and the mode decreases. E. The mean, median, and mode all remain unchanged.
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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