The following data represent the income distribution of guardians who take care of orphan and vulnerable children
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.
The following data represent the income distribution of guardians who take care of orphan and vulnerable children.
200 150 105 150 300 75 60 75 170 75
150 100 150 500 100 100 120 80 130 150
400 100 450 150 100 75 75 75 100 150
150 150 75 100 100 75 75 50 200 400
100 100 320 100 100 75 100 100 400 250
100 100 150 75 75 100 200 200 150 160
200 120 250 80 75 75 200 150 200 165
150 160 45 45 300 100 70 170 170 220
- Organize the data into 10 class intervals.
- Describe the nature of the data
- Determine mean and median and discuss the results
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