Measures of Center and Shapes of Distribution

Which of the following best describes the shape of the distribution?

• SKEWED LEFT

• SKEWED RIGHT

• UNIFORM

• SYMMETRICAL

The mean gets pulled away from the center of data or the typical value when the data is skewed to the right or left.

• True

• False

Which class was more consistent in their Algebra Scores?

• Class #2

• Class #1

• Both classes had the same consistency.

• 50%

The double line plot shows the number of students who attended the home games of the baseball team for two recent seasons. Which of the following statements is NOT true.

• The median attendance for 2009 was less than the median attendance than 2010.

• The attendance for 2010 was more consistent, so the standard deviation would be smaller than the standard deviation for 2009.

• The attendance for 2009 was more consistent, so the standard deviation would be smaller than the standard deviation for 2010.

• The attendance for 2010 ranged from 20-27.

The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48, 47, 55

What is the MEAN and the MEDIAN?

• Mean=49

  Median=54

• Mean=49

  Median=50

• Mean=50

  Median=54

• Mean=50

  Median=49

• symmetric, with outliers
• symmetric, with no outliers
• skewed to the left
• skewed to the right 

• 2nd period is skewed left.

• Both plots are symmetric.

• 5th period is skewed right.

• 2nd period's center is higher than 5th period.

Select all the TRUE statements.

• The median wait time for both rides is 35.

• The Red Racer has a lower maximum than the Wild Viper.

• The Wild Viper has a larger spread than Red Racer.

• The Red Racer has a larger IQR than the Wild Viper.

• the shape is skewed to the right

• the shape is symmetric

• the shape is skewed to the left

Which statement is NOT true?

• the spread for Reybold and Picktown are not the same

• neither box plot is symmetrical

• the medians are different

• the minimum for Picktown is 5 lower than the minimum for Reybold