The figure below presents a histogram of students visiting SULMS to download MATH2100 Module 4 leaming materials between 10:00 and 19:00 o'clock. Find the following: A) The median between 10:00 and 17:00 o'clock B) The mean between 12:00 and 16:00 o'clock C) The standard deviation for the entire period D) The coefficient of variation for the entire period E) The relative frequency for the entire period 70 66 60 50 40 35 30 24 23 18 19 20 18 16 16 12 10 |12 15 16 17 18 19 10 11 13 14 Students Number
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.
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