5.1-5.3 Quiz Review

What is the total area under the normal curve in a standard normal distribution?

• 1

• 2

• 3

• 4

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CCSS.HSS.ID.A.4

Where can we locate the mean in the normal curve?

• to the left portion

• to the right portion

• at the center

• on the z - axis

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CCSS.HSS.ID.A.4

Find the area under the standard normal curve to the right of z = -2.67.

• 0.0869
• 0.9962
• 0.0008
• 0.1234

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CCSS.HSS.ID.A.4

Find the area under the normal distribution curve to the left of 
Z=0.27.

• 0.3936
• 0.3897
• 0.6064
• 0.4892

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CCSS.HSS.ID.A.4

Find the area under the normal distribution curve between 
z=-1.53 and z=0.

• 0.437
• 0.563
• 0.500
• 0.063

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CCSS.HSS.ID.A.4

Find the area under the normal distribution curve between a z=-1.26 and z=.57. 

• 0.0047
• 0.9204
• 0.6119
• 0.4981

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CCSS.HSS.ID.A.4

• -1.25
• +1.25
• +1.20
• +1.02

Find the area of the shaded region if the z-score is 1.25

• 0.1056
• 0.8944
• 0.8849
• 0.1151

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CCSS.HSS.ID.A.4

Find the area of the shaded region if the z-score is 0.75

• 0.2266
• 0.7734
• 0.758
• 0.242

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CCSS.HSS.ID.A.4

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have more than 7 accidents?

• 0.3446
• 0.2856
• 0.4
• 0.6554

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CCSS.HSS.ID.A.4