Normal Deviation

What percentage of females are taller than 5'9.5"?

• 16%

• 68%

• 81.5%

• 95%

What percentage of females are between 5'3.5" and 5'6.5"?

• 16%

• 68%

• 81.5%

• 95%

The normal distribution curves represents U.S. female heights. What percentage of females are between 5'6.5" and 5'11"?

• 16%

• 68%

• 81.5%

• 95%

The mean GPA of students in a course at UCDavis is 3.2 with a standard deviation of 0.3. What percent of students in the course have a GPA between 2.9 and 3.5?

• 81.5%

• 47.5%

• 68%

• 95%

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.

How many standard deviations is 0.2 below the mean?

• 0

• 1

• 2

• 3

Which normal curve has the smallest mean?

• green

• red

• blue

Which normal curve has the largest standard deviation?

• green

• red

• blue

Which normal curve has the smallest standard deviation?

• green

• red

• blue

Which normal curve has a mean of 5 and a standard deviation of 2?

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