Salaries of Governors Here are the salaries (in dollars) of the governors of 23 randomly selected states. Construct a grouped frequency d classes. 112,895 117,312 140,533 110,000 177,500 120,303 115,331 139,590 95,000 150,000 173,987 130,000 133,821 144,269 142,542 150,000 145,885 105,000 93,600 166,891 130,273 70,000 113,834 Send data to Excel Part: 0/4 Part 1 of 4 What is the class width for a frequency distribution with 6 classes? The class width is
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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