Consider the below data set: x 75 80 93 65 87 71 98 68 84 77 y 82 78 86 72 91 80 95 72 89 74 (a) Fit the straight line curve to the data (b) Predict the value of y when x = 80
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.
Consider the below data set:
x 75 80 93 65 87 71 98 68 84 77
y 82 78 86 72 91 80 95 72 89 74
(a) Fit the straight line curve to the data
(b) Predict the value of y when x = 80
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