Quiz will ask 20 randomly selected questions with allotted time of . You can take the quiz more than once. Once you submit the quiz, you can review how you have done, the correct the answers for each questions and the explanation for the correct the answer.
7 Modules
Which of the following statements about the mean is true?
The mean is always greater than the median.
The mean is sensitive to extreme values (outliers).
The mean can be used for ordinal data.
The mean is the most commonly used measure of central tendency.
In a dataset with the values: 3, 7, 7, 2, 5, what is the mode?
2
3
5
7
If a dataset has an even number of observations, how is the median calculated?
It is the average of the two middle numbers.
It is the sum of all numbers divided by the count.
It is the highest number in the dataset.
It is the lowest number in the dataset.
Which measure of central tendency is most appropriate for skewed distributions?
Mean
Median
Mode
All of the above
Given the following dataset: 10, 12, 14, 14, 15, 16, 18, what is the median?
14
15
14.5
16
7 Modules