The mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class? 9 engineering majors: 90 5 math majors: 94 13 business majors: 76 The class's mean score is________ (Type an integer or a decimal rounded to two decimal places as needed.)
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.
The
|
9
engineering majors: 90 |
5
math majors: 94 |
13
business majors: 76 |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
