Consider the population of midterm scores of 4 students given below. 72 70 80 92 Compute the population mean, : 2. Suppose we want to select a sample of 2 scores from this population, without replacement, how many samples of size 2 are possible?
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.
- Consider the population of midterm scores of 4 students given below.
72 70 80 92
- Compute the population
mean , :
2. Suppose we want to select a sample of 2 scores from this population, without replacement, how many samples of size 2 are possible? (show work)
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