One-variable Statistics

The two measures of center we've study this unit are...

• Interquartile Range

• Mean Absolute Deviation

• Mean

• Median

• Standard Deviation

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A measure of variability helps determine the center of the data.

• True

• False

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Interquartile Range or IQR is a measure of variability and helps determine the spread of the data.

• True

• False

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If our data set is skewed to the right or left we would measure the center by calculating the...

• Mode

• Mean

• Median

• Range

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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

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A typical value is found by using either the...

• MAD

• Mean

• Standard Deviation

• Median

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If we use the mean to measure the typical value or center of the data, we would use the _________ to measure the variability.

• IQR

• Median

• Mean

• Standard Deviation

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If we use the median to measure the typical value or center of the data, we would use the _________ to measure the variability.

• Mode

• MAD

• Standard Deviation

• IQR or Interquartile Range

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A five number summary includes the minimum, maximum, median, ________ and ___________

• Pizza

• seltzer water

• quarter 1 or Q1

• quarter 3 or Q3

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The median is the...

• average of all data values

• the most frequently occurring number

• the difference between the biggest and smallest value

• the middle value

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