Task: Applying the measure of central tendency, compute for the mean, median and mode of the given data and identify what central tendency is best to use. Ten patients at a doctor’s surgery wait for the following lengths of times to see their doctor. 5 mins 17 mins 8 mins 2 mins 55 mins 9 mins 22 mins 11mins 16 mins 5 mins
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.
Task: Applying the measure of
- Ten patients at a doctor’s surgery wait for the following lengths of times to see their doctor.
5 mins 17 mins 8 mins 2 mins 55 mins
9 mins 22 mins 11mins 16 mins 5 mins
What are the mean, median and mode for these data? What measure of central tendency would you use here?
2. What is the appropriate measure of central tendency to use with these data?
Method of Transport Numbers Of Students
Walk 5
Car 4
Train 15
Bicycle 10
Motorbike 6
Bus 10
Total 50
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