Provided below is a simple data set for you to practice finding descriptive measures. For the data set, complete parts (a) through (c). 1, 2, 4, 5, 7, 1, 2, 4, 5, 7 - a. Obtain the quartiles. Q, Q2 = O3 = (Type integers or decimals. Do not round.) b. Determine the interquartile range. The interquartile range is O. (Type an integer or a decimal. Do not round.) c. Find the five-number summary. (Type integers or decimals. Do not round. Use ascending order.)
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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