Thomas is running an after-school day care center with 8 children. He is thinking about providing tutoring services for the children and is doing research on their grades in school. Each child takes 3 classes and either passes or fails each class. The children's grades are shown in the table below. "P" represents a passed class, and "F" represents a failed class. Draw a relative frequency plot that shows the proportion for each possible number of classes failed by a child Child Grades Student 1 PFP Student 2 PPF Student 3 FFP Student 4 PPP Student 5 PFP Student 6 PPF Student 7 FPF Student 8 PPP
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.
Thomas is running an after-school day care center with 8 children. He is thinking about providing tutoring services for the children and is doing research on their grades in school. Each child takes 3 classes and either passes or fails each class.
The children's grades are shown in the table below. "P" represents a passed class, and "F" represents a failed class.
Draw a relative frequency plot that shows the proportion for each possible number of classes failed by a child
| Child | Grades |
|---|---|
| Student 1 | PFP |
| Student 2 | PPF |
| Student 3 | FFP |
| Student 4 | PPP |
| Student 5 | PFP |
| Student 6 | PPF |
| Student 7 | FPF |
| Student 8 | PPP |
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