Number of music tour tickets sold from 2011 to 2019 worldwide
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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(2). Describe the independent and dependent variables:
Independent variable:
It is a type of independent variable, which can explain changes of the response variable. The researchers for a particular study of experiment manipulate an explanatory variable and there may be more than one explanatory variable. Lurking variable, confounding variable are type of explanatory variable.
In the given scenario, the independent variable is Year.
Dependent variable:
The focus of a question in a study of experiment is response variable, where one is interested to make measurements and form conclusions about it.
In the given scenario, the dependent variable is Number of music tour tickets.
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