Given this cumulative plot of the number of Instagram pictures sent in a week by the students in an AP Art class and using the most commonly accepted definition of outliers, what numbers of Instagram pictures are considered outliers? 1.00 0.75 0.50 0.25 20 30 40 50 60 Instagrams sent (A) Between 20 and 25 (B) Between 20 and 30 (C) Between 20 and 40 (D) Between 20 and 25, or between 55 and 60 (E) Between 20 and 30, or between 50 and 60 Cumulati ve frequency
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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