The table below shows Layla's grades on different subjects this 1st semester. Subjects Units Grades Introduction to Cybersecurity 3 1 Digital Forensics 2 1.75 Data Structures & Algorithm 3 1.75 Fundamentals of Routing & Switching 4 2 Network Forensics 2 2 Cybersecurity Risk Analysis Management 4 1.25 What is the weighted mean of her grades?
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 table below shows Layla's grades on different subjects this 1st semester.
| Subjects | Units | Grades |
|---|---|---|
| Introduction to Cybersecurity | 3 | 1 |
| Digital Forensics | 2 | 1.75 |
| Data Structures & Algorithm | 3 | 1.75 |
| Fundamentals of Routing & Switching | 4 | 2 |
| Network Forensics | 2 | 2 |
| Cybersecurity Risk Analysis Management | 4 | 1.25 |
What is the weighted mean of her grades?
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