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This year Jan Rich, who is ranked number one in women's singles in tennis, and Marie Wacker, who is ranked number three, will play 4 times. If Marie can beat Jan 3 times, she will be ranked number one. The two players have played 20 times before, and Jan has won 15 games. It is expected that this pattern will continue in the future. What is the probability that Marie will be ranked number one after this year? What is the probability that Marie will win all 4 games this year against Jan?
a) How many cars are red and have a sun roof, but do not have an automatic transmission? b) How many cars are not red, do not have an automatic transmission, and do not have a sun roof?
Test the hypothesis that random variable 30.4 31.2 30.8 29.9 30.4 30.7 29.9 30.1 come from a normal distribution with mean 30.5. The standard deviation of the measurements is known to be 0.1
Kodak & Fuji develop photographic film. Assume that there are no other significant manufactures, so that Kodak and Fuji constitute a duopoly
Suppose 70% of kids who visit the doctor have a fever, and 15% of kids with a fever have a sore throat. Whats the probability that a kid who goes to the doctor has a fever and a sore throat?
Employee absences can seriously affect productivity. In one country, employees are absent from work an average of 2.6 weeks of the 52-week work-year.
The following hypothetical data demonstrate the relationship. The dependent variable is a measure of language skill at age 3 for each child. Do the data indicate any significant differences? Test with α=0.05.
National polls are often conducted by asking the opinions of a few thousand adults nationwide and using them to infer the opinions of all adults in the nation. Explain who is in the sample and who is in the population for such polls. Please use a ..
Suppose that you do a test for H0: μ = 6 against HA: μ &neq; 6 you obtain a sample mean of 6.5 and the test gives you a a p-value of 6%. We want to connect the p-value to the confidence interval for the mean.
It provides a range of values, any of which is a good guess at the possible value of the sample mean.
A 5-card poker hand is said to be a full house if it consists of 3 cards of the same denomination and two other cards of the same denomination(of course,different from the first denomination). How many hands of full house are possible?
Consider trade relations in the United State and Mexico. Suppose that leaders of two countries believe the payoffs to alternative trade policies are as follows:
Consider the following data for a simultaneous move ggiven: If you advertise and your rival advertises, you will each earn 5 million dollar in profits.
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