Questions from Statistics

Q: Football teams have the option of trying to score either 1 or

Football teams have the option of trying to score either 1 or 2 extra points after a touchdown. A team scores 1 point by kicking the ball through the goal posts or 2 points by running or passing the b...

Q: Reader’s Digest ran a sweepstakes in which prizes were listed along with

Reader’s Digest ran a sweepstakes in which prizes were listed along with the chances of winning: $1,000,000 (1 chance in 90,000,000), $100,000 (1 chance in 110,000,000), $25,000 (1 chance in 110,000,0...

Q: In 1953, a French economist named Maurice Allais conducted a survey

In 1953, a French economist named Maurice Allais conducted a survey of how people assess risk. Here are two scenarios that he used, each of which required people to choose between two options. Decisio...

Q: Can You Catch Up? Suppose that you toss a fair coin

Can You Catch Up? Suppose that you toss a fair coin 100 times, getting 38 heads and 62 tails, which is 24 more tails than heads. a. Explain why, on your next toss, the difference in the numbers of hea...

Q: What is the law of large numbers? Can it be applied

What is the law of large numbers? Can it be applied to a single observation or experiment? Explain.

Q: In terms of the law of large numbers, explain why you

In terms of the law of large numbers, explain why you should not be surprised to see 6 heads in 10 tosses of a fair coin, but you should be surprised to see 600 heads in 1000 tosses of the same coin....

Q: What is an expected value, and how is it computed?

What is an expected value, and how is it computed? Should we always expect to realize the expected value? Why or why not?

Q: For a collection of 50 pairs of sample data values, the

For a collection of 50 pairs of sample data values, the correlation coefficient is found to be r  -0.900. Which of the following statements best describes the relationship between the two variables?...

Q: What is the gambler’s fallacy? Give an example.

What is the gambler’s fallacy? Give an example.

Q: The death rate for motorcycle accidents is much higher than the death

The death rate for motorcycle accidents is much higher than the death rate for automobile accidents, so more people must die in motorcycle accidents than in car accidents.