Draw stem and leaf table of the following value. Use it to find mean, median, mode and range, outlier of the given data. Also find the percentile rank of 750. 809, 227, 925, 166, 589, 725, 749, 564, 1066, 190, 243, 919, 799, 719, 929, 99, 588, 806, 933, 1088
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.
Q2 )Draw stem and leaf table of the following value. Use it to find mean,
In a small village the sample of ages of 8 persons are given below 26, 21, 8, 20, 16, 3, 22, 28 Find the co-efficient of variation from the above sample. Also find the z-score and percentile rank for 21. What would be the Q2 in this case.
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