3. Construct a Grouped Frequency Distribution on the data below 19 61 21 33 26 36 31 58 28 19 20 22 31 63 27 76 68 26 42 46 38 48 66 43 26 18 51 22 52 53 32 35 32 40 30 22 18 27 23 32 37 27 38 42 45 55 42 45 50 47
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.
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