Given: a population of 2000 normally distributed scores with mean μ = 74 and σ = 6. How many scores are- between 84 and 74? between 50 and 70? above 92?
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.
Given: a population of 2000
- between 84 and 74?
- between 50 and 70?
- above 92?
- at most 62?
- at least 56?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps