10 Questions
What is the mode in the series of numbers: 3, 4, 5, 5, 6, 7, 8, 8, 8, 9?
8
In ungrouped data, how is the mode typically found?
By inspection
For continuous data, how is the modal class determined?
The class with the highest frequency
What is a key merit of using mode as a measure of central tendency?
It is resistant to extreme values
What is a notable drawback of using mode in statistical analysis?
It is not based on all observations
In determining a percentile, what does the rank represent?
The position of the data point in the set
What additional step is required when the rank of a percentile is not an integer?
Perform interpolation between the floor and ceiling ranks
What does the range measure in analyzing ungrouped data?
The dispersion of data points
How is the variance calculated for ungrouped data?
By taking the sum of the squared deviations from the mean
What does the standard deviation provide a measure of?
How much the data deviates from the mean
This quiz focuses on the analysis of quantitative data, specifically discussing the arithmetic mean in the context of ungrouped data. An example with monthly salaries of employees is provided to illustrate the calculation process.
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