CCSS.Math.Content.HSS.ID.A.3

What is an outlier?

• A value that is much less or much greater than the other values in a data set.
• The difference between the upper and lower quartiles of a data set.
• The mean of the distances from each data value in a set to the mean of a set.
• The difference between the greatest and least numbers in a data set.

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CCSS.Math.Content.HSS.ID.A.3

The shape of the data is skewed left.

• TRUE
• FALSE

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CCSS.Math.Content.HSS.ID.A.3

Which statement correctly describes the shapes of the dot plots for cars and SUVs?

• SUVs: symmetrical
  Cars: skewed left
• Both are skewed left
• Both are symmetrical
• SUVs: skewed right
  Cars: Skewed left

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CCSS.Math.Content.HSS.ID.A.3

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease
• The median will decrease
• The mean will increase
• The median will increase

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CCSS.Math.Content.HSS.ID.A.3

The stem-and-leaf diagram below gives the distribution of the ages in years of 20 participants at a family reunion. Which of the following statements about the distribution is correct?

• The first quartile is larger than the third quartile.
• The distribution is strongly skewed to the left.
• It makes the most sense to use the mean and standard deviation as a numerical summary of the center and spread of this distribution.
• The mean is larger than the median.

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CCSS.Math.Content.HSS.ID.A.3

Given the following data set
6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14
What is the mean of the data set without the outlier(s)?

• 9.2
• 9.7
• 11.1
• 12.4

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CCSS.Math.Content.HSS.ID.A.3

Find the range and the outlier of the given data:
126, 62, 144, 132, 144, 103

• range: 82   out:62
• range: 62  out:62
• range:82  out:144

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CCSS.Math.Content.HSS.ID.A.3

When the mean is less than the mode this leads to a ...

• positive skew

• negative skew

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CCSS.Math.Content.HSS.ID.A.3

Which measure of central tendency would best represent this data?

• Mean

• Median

• Mode

• Range

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CCSS.Math.Content.HSS.ID.A.3

Which class did better on the test?

• 1st period

• 2nd period

• They both performed the same

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CCSS.Math.Content.HSS.ID.A.3