Measure of Central Tendency Interactive Quiz!

What is the main purpose of measures of central tendency?

• To identify extreme values in a dataset.

• To summarize the typical or central value of a dataset.

• To predict future data points with high accuracy.

• To visualize the spread of data.

How is the mean (average) of a data set calculated?

• By finding the number that appears most frequently.

• By identifying the middle number in an ordered list.

• By summing all the numbers and dividing by the total number of data points.

• By subtracting the smallest number from the largest number.

What does the median represent in a data set?

• The sum of all values divided by the count of values.

• The most frequently occurring value.

• The middle number when the data is arranged from smallest to largest.

• The difference between the highest and lowest values.

When a dataset contains a single, extremely large outlier, how does it typically affect the mean and median?

• The mean increases significantly, while the median remains largely unchanged.

• The median increases significantly, while the mean remains largely unchanged.

• Both the mean and the median increase significantly.

• Neither the mean nor the median is significantly affected.

What characteristic defines a "bimodal" dataset?

• It has only one value that appears most frequently.

• It has two values that appear with the highest and similar frequencies.

• Its mean, median, and mode are all the same.

• It contains only numerical data.