5.Consider the following frequency distribution below. Classes f 11-21 7 22-32 23 33-43 31 44-54 40 55-65 43 66-76 45 77-87 15 88-98 6 Required: Determine the value of the mean using the a. Midpoint method b. Unit Deviation method
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.
5.Consider the following frequency distribution below.
Classes f
11-21 7
22-32 23
33-43 31
44-54 40
55-65 43
66-76 45
77-87 15
88-98 6
Required:
Determine the value of the mean using the
a. Midpoint method
b. Unit Deviation method
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