Fitness Machine A fitness center bought a new exercise machine called the Mountain Climber. They decided to keep track of how many people used the machine over a 3-hour period. Here X is the number of people who used the machine, 4 P(X) 0.3 0.3 0.2 0.1 0.1 Send data to Excel Part: 0/3 Part 1 of 3 Find the mean. Round your answer to one decimal place as needed. Mean: u=14 Part: 1/3 Part 2 of 3 Find the variance. Round your answer to one decimal place as needed. Variance: o | %3D Part: 2/3 Part 3 of 3 Find the standard deviation. Round your answer to one decimal place as needed. Standard deviation: G =
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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