Central Tendency Measures

What is the formula to calculate the mean of a set of numbers?

• Mean = (Sum of all numbers) * (Total count of numbers)

• Mean = (Sum of all numbers) + (Total count of numbers)

• Mean = (Sum of all numbers) / (Total count of numbers)

• Mean = (Sum of all numbers) - (Total count of numbers)

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CCSS.6.SP.A.3

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If a data set has an even number of values, how is the median calculated?

• Product of all values

• Sum of all values

• Average of the two middle values

• Minimum value

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In a data set, what is the value that appears most frequently known as?

• Mean

• Mode

• Median

• Average

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Calculate the mean of the following numbers: 10, 15, 20, 25, 30

• 18

• 20

• 28

• 22

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What is the median of the data set: 5, 10, 15, 20, 25, 30

• 20

• 35

• 10

• 15

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If a data set has no repeated values, what can be said about the mode?

• The mode is the median.

• There is one mode.

• The mode is the mean.

• There is no mode.

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CCSS.6.SP.A.3

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Find the mode of the following data set: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

• The mode is 10

• The mode is 14

• There is no mode.

• The mode is 12

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When is the median the same as the mode in a data set?

• When there are no repeated values in the data set

• When all values in the data set are the same

• When the data set has an even number of values

• When the data set is perfectly symmetrical

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Determine the mode of the following data set: 3, 3, 6, 6, 9, 9, 12, 12

• Single mode: 3

• Single mode: 9

• Multiple modes: 3, 6, 9, 12

• Single mode: 6

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In a perfectly symmetrical data set, how do the mean, median, and mode compare?

• They are all different.

• The median is higher than the mean and mode.

• The mean is higher than the median and mode.

• They are all equal.

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