e. What is the shape of the data? f. What is the best measure of center and spread to use for this data set
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.
2. This is a sample of 10 random seasons in the National Hockey League, Wayne Gretzky scored
50% more points than anyone who ever played professional hockey. He accomplished this amazing
feat while playing in 280 fewer games than Gordie Howe, the previous record holder. Here are the
number of games Gretzky played during each season.
45 70 73 73 74 78 79 80 80 82
e. What is the shape of the data?
f. What is the best measure of center and spread to use for this data set
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