Finding the Area under the Normal Curve
Presentation
•
Mathematics
•
12th Grade
•
Medium
Azineth Buan
Used 6+ times
FREE Resource
31 Slides • 8 Questions
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Finding the Area under the Normal Curve
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Multiple Choice
The test scores for a civil service exam are normally distributed with a mean of 152 and a standard deviation of 7. Find the standard z-score for a person with a score of 161
0
-0..52
1.29
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Multiple Choice
The test scores for a civil service exam are normally distributed with a mean of 152 and a standard deviation of 7. Find the standard z-score for a person with a score of 148
0
-0..57
1.29
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Multiple Choice
The test scores for a civil service exam are normally distributed with a mean of 152 and a standard deviation of 7. Find the standard z-score for a person with a score of 152
0
-0..57
1.29
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Multiple Choice
Find the area under the standard normal curve to the left of z = -2.30
0.9893
0.0107
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Multiple Choice
Find the area under the standard normal curve to the right of z = -2.30
0.9893
0.0107
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Multiple Choice
Find the probability under the normal curve: P(z>-1.88)
0.9699
0.0301
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Multiple Choice
Find the indicated probability using the standard normal curve.
P((-1.45<z<1.45)
0.8529
0.4265
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Multiple Choice
Find the indicated probability using the standard normal curve.
P((0<z<1.45)
0.0107
0.4265
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Putting it all together:
1. A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes with a standard deviation of 12 minutes in the store. The length of time spent in the store is normally distributed and is represented by the variable x. A shopper enters the store. Find the probability that the shopper will be in the store for between 24 and 54 minutes.
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Find the probability that the shopper will be in the store more than 39 minutes if µ = 45 minutes and σ = 12 minutes
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Finding the Area under the Normal Curve
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