Math IA - Standard Deviation Practice (1st/3rd) 12/6

Which data set has the largest standard deviation?

• Set A- the age of 100 cars on a used car lot

• Set B- the age of 100 cars on a new car lot

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Which data set has the largest standard deviation?

• Set A- the price of 20 houses on the same street in Temecula

• Set B- the price of 20 houses in the state of California

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Which data set has the largest standard deviation?

• Set A- the age of 50 people binge watching and re-watching Frozen 1 & Frozen 2

• Set B- the age of 50 people binge watching and re-watching Tiger King

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What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.

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All of the below sets have the same mean.

Set 1-Standard Deviation=3.1

Set 2-Standard Deviation=4.9

Set 3-Standard Deviation=1.7

Set 4-Standard Deviation=3.2

Which set of data probably has the points furthest to the mean?

• 1
• 2
• 3
• 4

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The ages of the employees at Company A tend to be closer together, than those at Company B.

• True

• False

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The ages of the employees at which company tend to be lower than the other?

• Company A

• Company B

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If a bowler needs to hit exactly 6 pins, which bowler is more reliable to hit that number?

• Bowler A
• Bowler B
• Both
• Neither

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If a ball needs to be hit exactly 300 ft, which batter is more reliable to hit that distance?

• Batter A
• Batter B
• Both
• Neither

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If the two batters each hit 10 balls, which batter probably hit the farthest ball and the shortest ball? 

• Batter A
• Batter B
• Both
• Neither

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