What is the main objective of the lesson on measures of variation?

• To learn about data collection methods

• To calculate the median of a data set

• To find and interpret the mean absolute deviation

• To understand the concept of mode

In the restaurant example, what is the mean number of specials ordered per day?

• 26

• 28

• 30

• 32

What does the mean absolute deviation represent in the roller coaster example?

• The total height of all people

• The tallest person's height

• The average distance each person's height is from the mean

• The average height of all people

How is the mean calculated in Samantha's basketball scores example?

• By adding all scores and dividing by the number of games

• By multiplying all scores together

• By finding the highest score

• By subtracting the lowest score from the highest

What is the mean absolute deviation of Samantha's basketball scores?

• 3.75

• 2.48

• 4.20

• 5.10

What does the standard deviation measure in a data set?

• The spread of data values from the mean

• The average value of the data set

• The lowest value in the data set

• The highest value in the data set

In the Class A quiz scores example, what is the mean score?

• 8.25

• 9.45

• 10.50

• 7.05

What is the range of scores within one standard deviation for Class A?

• 8.00 to 10.00

• 5.00 to 7.00

• 6.00 to 8.00

• 7.05 to 9.45

What is the mean score for Class B's quiz scores?

• 6.50

• 7.50

• 8.50

• 9.50

What is the range of scores within one standard deviation for Class B?

• 7.0 to 9.0

• 6.0 to 8.0

• 8.0 to 10.0

• 5.6 to 9.4