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