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Fall Final Exam Review 1 - Fall Final Review AP Stats Name...

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Page 1 Fall Final Review – AP Stats Name: ______________________________ Date: ____ 1. A researcher notices that in a sample of adults, those that take larger amounts of vitamin C have fewer illnesses. However, those that take larger amounts of vitamin C also tend to exercise more. As explanations for having fewer illnesses, the variables “amount of vitamin C taken” and “amount of exercise” are A) skewed. B) confounded. C) common responses. D) symmetric. 2. Event A occurs with probability 0.3. If event A and B are disjoint then A) P(B) 0.3. B) P(B) 0.3. C) P(B) 0.7. D) P(B) 0.7. 3. Birthweights at a local hospital have a normal distribution with a mean of 110 ounces and a standard deviation of 15 ounces. The proportion of infants with birthweights between 125 ounces and 140 ounces is 4. The Insurance Institute for Highway Safety publishes data on the total damage suffered by compact automobiles in a series of controlled, low-speed collisions. A sample of the data in dollars, with brand names removed, is 1000 600 800 1000 The variance of the above data is 5. Which of the following is likely to have a mean that is smaller than the median?
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