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- 1. Multiple ChoiceIf the shaded area under the curve is .85, what is the other missing portion of the curve?.26.15.30.17
- 2. Multiple Choice
1. Which best describes the shaded part of this normal distribution graph?All data that is one or higher.All data that is one or more standard deviations above the mean.All data that is between 1 and 3.All data that is above the mean. - 3. Multiple ChoiceThe 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. - 4. Multiple ChoiceAccording to the empirical rule, what percentage of data falls within 1 standard deviation?25%68%95%99.7%
- 5. Multiple ChoiceAccording to the empirical rule, how much of the data falls within 3 standard deviations?25%68%95%99.7%
- 6. Multiple Choice
What percent of people are 3 standard deviations above the mean?
.15
34
68
2.35
- 7. Multiple Choice
What percent of people are 2 standard deviations or more above the mean?
2.35
34
68
2.5
- 8. Multiple Choice
What percent of people within 1 standard deviation of the mean?
99.7
34
68
95
- 9. Multiple Choice
What percent of people within 2 standard deviations of the mean?
99.7
34
68
95
- 10. Multiple Choice
What percent of people within 3 standard deviations of the mean?
99.7
34
68
95
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