The distribution below represents the net worth (in millions of dollars) of 45 national corporations. Class Intervals Frequency 20-30 31-41 10 42-52 53-63 15 64-74 75-85 What is the standard deviation?
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 distribution below represents the net worth (in millions of dollars) of 45 national corporations.
Class Intervals
Frequency
of
20-30
3
on
31-41
10
42-52
53-63
15
64-74
8
75-85
What is the standard deviation?
4) ENG
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