1. Using the data below which are the number of kilos of newspapers contributed by one section in the Newspaper Fund Drive. 25 | 64 | 15|| 42 | 64 30 30 12 45 63 45 25 70| 48 82 16 17 42 33 75 10 12 48 35 67 13 18 16 47 80 12 34 15 50 83 52 48 35 15 57 a. Construct a frequency distribution b. Calculate for: 1. Mean 6. De 2. Median 7. IR 3. Mode 8. QD 4. Q1 9. P90 5. P75 10. St
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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