The data show the amount of sales tax paid in a county in Colorado. Find the first and third quartiles for the data. Month Sales Tax Month Sales Tax January 363,767 July 518,764 February 358,713 August 554,829 March 418,978 September 506,560 April 266,999 October 341,982 May 399,563 November 349,913 June 453,137 December 532,421 What is the first quartile?
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.
The data show the amount of sales tax paid in a county in Colorado. Find the first and third
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