Next Problem Ted took 4 courses last semester: Calculus, Physics, History, and Biology. The means and standard deviations for the final exams, and Ted's scores are given in the table below. Convert Ted's scores into z-scores. Subject Mean Stand. dev. Ted's score Ted's z-score Calculus 70 12 79 Physics 60 14 81 History 53 16 57 74.5 10 Biology 77 On what exam did Ted have the highest relative score? (Enter the subject.)
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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