Standard Scores (Z-Scores)

The IQR is to the median what the ________-_________ is to the mean.

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CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

This is an example of which type of skew?

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CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.3

68% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

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CCSS.HSS.ID.A.4

95% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

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CCSS.HSS.ID.A.4

99.7% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

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CCSS.HSS.ID.A.4

If the mean height is 180cm and the standard deviation is 4. What percentage of the population would lie between 176cm and 180cm?

• 34%

• 68%

• 95%

• 50%

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CCSS.HSS.ID.A.4

The mean is 45. The standard deviation is 5.

Approximately, what percentage of the data lies between 35 and 55?

Tags

CCSS.HSS.ID.A.4

The mean is 200. The standard deviation is 25.

Approximately, what percentage of the data is below 275?

Tags

CCSS.HSS.ID.A.4

200 people were surveyed and their weights (kg) were recorded. The mean weight was 75kg and the standard deviation was 6kg. How many people would you expect to weigh between than 63kg and 81kg?

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CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.2

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CCSS.HSS.ID.A.4