Measures of Central Tendency

What is the range of a data set?

• The average of all values in the data set.

• The difference between the highest and lowest values in the data set.

• The total number of values in the data set.

• The value that appears most frequently in the data set.

True or False

There can be more than one mode

• True

• False

• Only in certain cases

• It depends on the data set

What is the mean of a data set, and how is it calculated?

• The mean is the total of all numbers divided by the number of values in the set.

• The mean is the largest number in the data set.

• The mean is the difference between the highest and lowest values in the data set.

• The mean is the sum of the squares of the numbers divided by the count of numbers.

How do you find the median of a data set?

• Arrange the numbers in descending order and identify the middle number.

• Arrange the numbers in ascending order and identify the middle number.

• Take the sum of all numbers and divide by the count of numbers.

• Identify the largest number in the data set.

What is the mode of a data set?

• The average of all numbers in the data set.

• The number that appears most frequently in the data set.

• The middle value when the data set is ordered.

• The largest number in the data set.

What does it mean if a data set has no mode?

• It means that no number appears more than the others in the data set.

• It means that all numbers appear with the same frequency.

• It means that the data set contains only unique numbers.

• It means that the data set has a maximum value that is repeated.