If the 5-number summary is 3, 7, 10, 11, 15, the IQR is 11-7=4. 1.5IQR = 1.5*4 = 6 Lower fence = Q1-1.5IQR = 7-6 = 1, so values less than 1 and values greater than the upper fence are considered as outliers. What is the upper fence? Upper fence = Q3+1.5IQR =
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.
If the 5-number summary is 3, 7, 10, 11, 15, the IQR is 11-7=4.
1.5IQR = 1.5*4 = 6
Lower fence = Q1-1.5IQR = 7-6 = 1, so values less than 1 and values greater than the upper fence are considered as outliers. What is the upper fence?
Upper fence = Q3+1.5IQR = ?
The given five number summary is,
3, 7, 10, 11, 15
The first and third quartiles are,
The interquartile range is,
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