The following reading were recorded by testing measurement
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.
Q1.) a) The following reading were recorded by testing measurement
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Answer the following
Q1.)
a) The following reading were recorded by testing
measurement
No. of reading
1
4
4
(Reading value(x
6-
5-
4-
3-
Calculate:
1- Arithmetic mean
2- Average deviation
3- Draw the Gaussian curve for above reading.
b) What is the difference between systematic and random errors; then
list the reasons for equipment errors.
2-
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