Consider these test scores, all out of 100. They are: 61, 76, 89, 72, 65, 71, 61, 83, 45, 68, 62, 59, 71, 68, 69, and 86. Calculate how much larger is the mean score compared to the median score.
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 these test scores, all out of 100. They are: 61, 76, 89, 72, 65, 71, 61,
83, 45, 68, 62, 59, 71, 68, 69, and 86. Calculate how much larger is the mean
score compared to the median score.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbc02978d-62b9-4e49-8a03-a248c65ea443%2F66f6525f-54b2-435c-b2cb-a371acc25b37%2Fejwevy_processed.jpeg&w=3840&q=75)
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