Exploring Mean, Median, Mode, and Range

What is referred to as a measure of central tendency?

• Mode

• Median

• All of the above

• Mean

How is the mean calculated from a set of data?

• Most frequent data item

• Middle value of data

• Sum divided by the number of items

• Sum of all data items

How do you calculate the mean of a data set?

• None of the above

• Subtract smallest from largest item

• Add all items and divide by total number of items

• Identify the most frequent item

What must be done to data before calculating the median?

• Convert all data to positive numbers

• Arrange data in descending order

• Arrange data in numerical order

• Divide data into two sets

If data set size is even, how is the median determined?

• Average of all data items

• Middle value of data

• Average of two middle values

• Sum of two middle values

What is the median in a data set with an odd number of items?

• Sum of all data items

• Middle value directly

• None of the above

• Average of two middle values

What does the range represent in a data set?

• Difference between highest and lowest values

• Average of all data items

• Middle value of data

• Most frequent data item

Which measure of central tendency is described as the most frequent data item?

• Mean

• Median

• Mode

• Range

What is the mode in a data set where no number repeats?

• The lowest value

• There is no mode

• The median value

• The highest value

What is the range of a data set with values from 3 to 15?

• 15

• 3

• 18

• 12