A yoga teacher collected data on the ages of the people in her class. The median is 36 years old. The mean is 42 years old The mode is 50 years old Which statement must be true? A. At least half of the people in the class are 36 years old or younger. B. Most people in the class are 42 years old. C. The oldest person in the class is 50 years old. D. Each person in the class is either 36, 42, or 50 years old.
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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