One Variable Statistics - Review

For a set of data, where Q₁ = $30, Q₂ = $55, and Q₃ = $80.  Calculate the interquartile range.

• $15
• $50
• $55
• $25

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What is the range of the set of data?

• 70
• 65
• 80
• 55

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What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

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How many employees are there that make between $33,000 and $43,000

• 250
• 500
• 550
• 750

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Which car club has the higher median?

• Cruisers
• Car Hops

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Which club has the smaller spread?

• Cruisers
• Car Hops

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75% of the Cruisers went to more than 13 car shows.  True or False?

• True
• False

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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 median

• Mean=49
  Median=54
• Mean=49 
  Median=50
• Mean=50 
  Median=54
• Mean=50
  Median=49

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CCSS.6.SP.B.5

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The numbers of runs scored by a softball team in 20 games are given.
 3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7
What is the Interquartile Range.

• IQR = 6
• IQR = 10
• IQR = 7.5
• IQR = 12

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Which of the following is a measure of variability?

• mean
• median
• mode
• standard deviation

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