Placement exams An incoming freshman took hercollege’s placement exams in French and mathematics.In French, she scored 82 and in math 86. The overall results on the French exam had a mean of 72 and a stan-dard deviation of 8, while the mean math score was 68, with a standard deviation of 12. On which exam did shedo better compared with the other freshmen?
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.
college’s placement exams in French and mathematics.
In French, she scored 82 and in math 86. The overall
dard deviation of 8, while the mean math score was 68,
do better compared with the other freshmen?
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