Find the mean for the data items in the given frequency distribution. Score, x 1 2 3 4 5 6 7 8 Frequency, f 1 4 1 4 6 1 2 1 The mean is _______. (Round to 3 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.
|
Score, x
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
|
Frequency, f
|
1
|
4
|
1
|
4
|
6
|
1
|
2
|
1
|
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 10 images
