1. What’s the equation of the line you’d use to predict scores on the final based on scores on the mid-term? 2. I got an 80 on the mid-term. What do you think I’ll get on the final? My friend got an 85 on the mid-term. What do you think she will get on the final?
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.
For all students who have taken a certain class during the last ten years, the
average on the mid-term is 83.4 and the standard deviation of the mid-term
scores is 7.2; the average on the final is 79.3 and the standard deviation of the
scores on the final is 5.1; the
scores on the final is 0.86.
1. What’s the equation of the line you’d use to predict scores on the final
based on scores on the mid-term?
2. I got an 80 on the mid-term. What do you think I’ll get on the final?
My friend got an 85 on the mid-term. What do you think she will get on
the final?
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