20 - Calculate the standard deviation of the following simple sales series (units). Xi 1 A) 5,923 B) 6,584 C) 4,74 D) 3,93 E) 2,56 9. 15 18
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.
![20 -
Calculate the standard deviation of the following simple sales series (units).
Xi
1
A)
5,923
в)
6,584 C) 4,74 D) 3,93
E) 2,56
3
9
15
18
21 -
Calculate the standard deviation (pieces) of the following classified series of sales.
Notlar
Frekenslar
A)
5,362 B) 2,635 C)
4,841
D) 3,12
E) 2,932|
(X;)
(Ni)
9
2
10
7
3
8
7
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