Instruction. Solve the following (Complete the tables) The IQ of 8 grade one students is given below: 80 125 1. 128 130 95 107 114 100 Complete the table and compute for the population mean, population variance, population standard deviation. Number X-µ (x – µ)* 2 3 4 7 8. Ex = E(x – µ)² = Write you computations here: population mean population variance population 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 IQ of 8 grade one students is given below:
80
128
95
114
125
130
107
100
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