The table below shows the respective heights x and y of a sample of 12 fathers and their oldest sons. (a) Construct a scatter diagram. (b) Find the regression line of y on x. (C) Find the height of the father if the height of the son is 60 inches. Height x of Father (inches) 65 63 67 64 68 62 70 66 68 67 69 71 Height y of Son (inches) 68 66 68 65 69 66 68 65 71 67 68 70
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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