A company owns twelve commercially zoned parcels of land. The assessment rates (in percentages) assigned to these in 2014 were 21 22 27 36 22 29 22 23 22 28 36 33 For this population: (a) Find the mean percentage assessment rate. (b) Find the median of these percentage rates. (c) Find the mode of these percentage assessment rates. (d) Find the population variance and standard deviation. (e) Find the range.
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.
1. A company owns twelve commercially zoned parcels of land. The assessment rates (in
percentages) assigned to these in 2014 were
21
22
27
36
22
29
22
23
22
28
36
33
For this population:
(a) Find the mean percentage assessment rate.
(b) Find the median of these percentage rates.
(c) Find the
(d) Find the population variance and standard deviation.
(e) Find the
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