Two students are taking a college entrance exam and known to have a normal distribution of scores. Both students receive raw scores of 63 and 93, which correspond to z scores (often called the standardized scores) of -1 and 1.5 respectively. Answer the followings: Calculate the value of standard deviation of the raw exam scores
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.
Two students are taking a college entrance exam and known to have a
Calculate the value of standard deviation of the raw exam scores.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
