1) which of the following is the formula for range? H + L L x H L – H HL 2) consider the following Data set: 14,23,9,12,21,18,8. What is the variance? 204 14 15 398 3) What is median of this set of numbers: 4,6,7,9,2000000? 7 6 7 4
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) which of the following is the formula for
- H + L
- L x H
- L – H
- HL
2) consider the following Data set: 14,23,9,12,21,18,8. What is the variance?
- 204
- 14
- 15
- 398
3) What is median of this set of numbers: 4,6,7,9,2000000?
- 7
- 6
- 7
- 4
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