9. A scientist studies a population where individual measurements are very uneven and not bell-shaped. He still uses sample averages to estimate the population mean. Why is this reasonable?
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7. What mistake was made in the SIDS court cases?
7. What mistake was made in the SIDS court cases?
16. A blood test has a mean of 122 and a standard deviation…
16. A blood test has a mean of 122 and a standard deviation of 18. Which result would be considered the most unusual?
4. What is the gambler’s fallacy?
4. What is the gambler’s fallacy?
3. Why are tail risks dangerous?
3. Why are tail risks dangerous?
19. The average SAT math score is 500 with a standard deviat…
19. The average SAT math score is 500 with a standard deviation of 100. Which score is most likely to be rare?
15. Which situation would most likely have the smallest stan…
15. Which situation would most likely have the smallest standard deviation?
2. What does “tail risk” mean?
2. What does “tail risk” mean?
17. In a normal distribution, approximately what percentage…
17. In a normal distribution, approximately what percentage of data falls within one standard deviation of the mean?
9. What does reversion to the mean explain?
9. What does reversion to the mean explain?