6th Grade Big Ideas Chapter 9 Practice

To find the average of a set of numbers, add up all the items and divide by...

• 2
• The minimum
• The maximum
• The number of items

A data set can have more than one _______

• Median
• Mode
• Mean
• Midrange

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean
• Median
• Mode
• Range

A question that anticipates and accounts for a variety of answers.

• Statistical Question
• Range
• Mean
• Box Plot

Which is the MIDDLE of an ordered set of data?

• Mean

• Median

• Mode

• Range

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

For a data set with median M, it is the median of the data values greater than M.

• Interquartile Range
• Outliers
• First Quartile
• Third Quartile

For a data set with median M, it is the median of the data values less than M.

• Interquartile Range
• Outliers
• First Quartile
• Third Quartile

Find the 1st (Q1) , 2nd (Median), and 3rd (Q3) quartile of the data set:

4, 2, 1, 3, 13, 7, 11,15

• 1st: 3, 2nd: 6, 3rd: 14

• 1st: 13, 2nd: 5.5, 3rd: 2.5

• 1st: 2.5, 2nd: 5.5, 3rd: 12

• 1st: 14, 2nd: 6, 3rd: 3

True or False
To find the IQR (interquartile range) you have to add the Q3 + Q1.

• True
• False