6.SP.5 Measures of Variability POP QUIZ

What is the definition of Mean?

• Last number minus the first number

• Range of the numbers

• Number that occurs the most often

• Average of the numbers

What is the first step to solving for the Mean Absolute Deviation?

• Find the mean of the new set of numbers

• Find the mean of the given data set

• Subtract the mean from each original data point

What is the second step to solving for the Mean Absolute Deviation?

• Find the mean of the new set of numbers

• Find the mean of the given data set

• Subtract the mean from each original data point

What is the last step to solving for the Mean Absolute Deviation?

• Find the mean of the new set of numbers

• Find the mean of the given data set

• Subtract the mean from each original data point

What is the definition of the Mean Absolute Deviation?

• A data set is the average distance between each data value and the mean

• The average of the numbers

• The difference between the lowest and highest values

• The "middle" value in the list of numbers

True or False

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

• True

• False

What is an interquartile range?

• The difference between the upper and lower quartiles.

• The measure of the middle half of the data.

• A measure of variability.

• All of the above

• None of the above

What is the first step to take when attempting to find IQR?

• Find the lower and upper quartile.

• Find the median.

• Put the list of numbers in order.

• Subtract the lower and upper quartile.

What is a the meaning for "median"?

• fair share
• middle
• repeats the most
• variation

Find the Mean Absolute Deviation: (MAD)

10, 9, 3, 8, 10.

• 3

• 5

• 1

• 2