The number of books each of 8 students in a 2nd grade class read during a week are below: 7,14,8,23,25,9,10,8 Use the data to find the following, round to the nearest tenth, and show work. Range: _________ The 1st Quartile:________ Standard Deviation:________ Mean:_________
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 number of books each of 8 students in a 2nd grade class read during a week are below:
7,14,8,23,25,9,10,8
Use the data to find the following, round to the nearest tenth, and show work.
Range: _________
The 1st Quartile:________
Standard Deviation:________
Mean:_________
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