9.5_Account for the possible effects of extreme data points

What is the shape of the data?

• symmetrical

• skewed left

• skewed right

• uniform

What is shape of the data?

• uniform

• skewed left

• skewed right

• symmetrical

What is the shape of the distribution?

• Skewed Left

• Skewed Right

• Symmetric

• Bimodal

What is the shape of the data?

• symmetrical

• skewed left

• skewed right

• uniform

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

• Skewed left

• Skewed right

• uniform

• symmetrical

The ages of nine employees at a company are shown below.
45, 50, 52, 58, 63, 63, 41, 58, 49
The company hires a tenth employee who is 28 years old. What effect does the new employee have on the shape of the data distribution?

• The new employee causes the distribution to become skewed to the right.
• The new employee causes the distribution to be skewed to the left.
• The new employee causes the distribution to become more symmetrical.
• The new employee causes the distribution to become less spread out.

The number of books 11 students read during their summer vacation are shown below.
5, 7, 4, 23, 3, 2, 4, 4, 3, 8, 6
Which statement below is true?

• The student who read 2 books caused the data distribution to be skewed left.
• The student who read 2 books caused the data distribution to be skewed right.
• The student who read 23 books caused the data distribution to be skewed to the left.
• The student who read 23 books caused the data distribution to be skewed to the right.

What measure of central tendency (mean, median or mode) would be best for the following set of data?

0, 89, 92, 97, 99, 100

• Mode, because it is the one that shows up the most.

• Median, because there is an outlier.

• Mean, because there is not an outlier.

• There is not a best measure of central tendency for this data.

What measure best describes the center of the data distribution?
*Hint - If the data is uniform or symmetric, the use either mean or median.  If the data is skewed, then use the median.

• spread
• mean
• peak
• median

A data value that is much higher or much lower than the other values in a data set.

• outlier
• inlier
• immalier
• sublier