A students score is based on one midterm that counts as 5% of his final grade, one class project counts as 25% of his final grade, a set of homework assignments counts as 30% of his final grade, and a final exam counts as 40% of his final grade. His midterm score is 62, his project score is 82, his homework score is 81, and his final exam score is 62. What is his overall score?
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.
Percentage is a number which is indicated as a fraction of 100. The sign % is used for denoting percentages.
To convert percentage to normal numbers, divide it by 100. Weighted average is a type of average where some data points contribute more to the final average.
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