The following readings were recorded for voltage measurement 12 , 9.5 , 8 , 9.5 , 12, 9.5 , 8 , 9 , 12 , 9.5 Calculate and then chose the correct value of the flowing requirement Average deviation (D) variance (v) Probable error ( r) Standard deviation (σ) Arithmetic mean (x)
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 following readings were recorded for voltage measurement
12 , 9.5 , 8 , 9.5 , 12, 9.5 , 8 , 9 , 12 , 9.5
Calculate and then chose the correct value of the flowing requirement
Average deviation (D)
variance (v)
Probable error ( r)
Standard deviation (σ)
Arithmetic mean (x)
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