71.6 69.9 70.8 71.5 72.0 71,4 73.8 74.2 73.2 72.3 73.7 77.0 77,4 77.0 76.3 76.6 75.5 76.6 77.0 76.9 77.8 77.1
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.
Time-Series Graphs. In Exercises 9 and 10, construct the time-series graph.
Gender Pay Gap Listed below are women’s median earnings as a percentage of men’s median earnings for recent years beginning with 1990. Is there a trend? How does it appear to affect women?
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