AP Stats

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Find the probability that a driver was injured given they were not wearing a seatbelt. *Do not round answers*

Find the probability that a driver was injured. *Do not round answers*

A survey collected data from students on whether or not they eat breakfast regularly. Let B = student eats breakfast and M = student is a male. Find P(B). 

• 0.577

• 0.191

• 0.5

• 0.199

41% of Americans watch the World Series, while 89% watch the Super Bowl. 9% of Americans watch neither. Let W = Americans watch the World Series and S = Americans watch the Super Bowl. The probability that an American watches the World Series or the Super Bowl is __%

41% of Americans watch the World Series, while 89% watch the Super Bowl. 9% of Americans watch neither.
Let W = Americans watch the World Series and S = Americans watch the Super Bowl.
The probability that an American watches BOTH the World Series and the Super Bowl is __%

41% of Americans watch the World Series, while 89% watch the Super Bowl. 9% of Americans watch neither. Let W = Americans watch the World Series and S = Americans watch the Super Bowl. The probability that an American watches the World Series given they watch the Super Bowl is __% Round to the nearest percent.

In a bag of M&M’s, 15 are brown, 10 are red, 5 are yellow, and 3 are green. Four M&M’s are chosen from the bag at random, with replacement. Find the probability no M&Ms are green.

Dr. Stats plans to toss a fair coin 10,000 times in the hope that it will lead him to a deeper understanding of the laws of probability.

Which of the following statements is true?

• It is unlikely that Dr. Stats will get more than 5000 heads.

• Whenever Dr. Stats gets a string of 15 tails in a row, it becomes more likely that the next toss will be a head.

• The fraction of tosses resulting in heads should be exactly 1/2.

• The chance that the 100th toss will be a head depends somewhat on the results of the first 99 tosses.

• It is likely that Dr. Stats will get about 50% heads.