Applied Math - Statistics - Quiz 2 - Normal Curves

Which of the following graphs shows a normal curve?

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.3

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 95%
• 99.7%
• 50%

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.1

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 95%
• 99.7%
• 50%

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 95%
• 99.7%
• 50%

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CCSS.HSS.ID.A.4

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 32%

• 95%
• 50%

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

This data is normally distributed.  What percentage of the data is in the shaded region?

• 68%
• 34%
• 17%
• 50%

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CCSS.HSS.ID.A.4

The mean life of a tire is 30,000 km. The standard deviation is 2000 km.

Then, 68% of all tires will have a life between ___________ km and __________ km.

•  28,000 km and 32,000 km.
• 24,000 km and 34,000 km.
• 26,000 km and 34,000 km.
• 27,000 km and 31,000 km.

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CCSS.HSS.ID.A.4

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%

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CCSS.HSS.ID.A.4

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last 6 days or less?

• 68%
• 34%
• 16%
• 2.5%

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CCSS.HSS.ID.A.4

The distribution of heights of adult American men is approximately Normal with mean 69 inches and standard deviation 2.5 inches. What percent of men are between 64 and 66.5 inches tall? 

• 50%
• 2.5%
• 13.5%
• 34%

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2