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Sports and Leisure Consider a regular deck of 52 playing cards. For a five-card poker hand, find the probability of:
a. One pair.
b. Two pairs.
c. Three of a kind: three cards of the same rank and two others of different ranks, for example, JJJ74.
d. A straight: five cards in sequence; the ace can be either high or low.
e. A flush: five cards of the same suit.
the common stock of flavorful teas has an expected return of 19.65 percent. the return on the market is 14.5 percent
Find the probability that for a randomly selected office hour, the number of student arrivals is 3. (b) What is the probability that he will get at most 5 students in a randomly selected office hour?
What is the difference in appearance between a t-distribution and a z-distribution? Why do they have slightly different appearances?
the prevalence of tuberculosis in cows is known to be 6. in a randomly chosen sample of 100 cows from a herd of 5000
Design a study to compare topical cream (applied to the skin) and a drug taken in capsule form for the treatment of a certain type of skin rash.
When water taxi sank in the Baltimore Inner Harbor, an investigation revealed that the safe passenger load for water taxi was 3500 lbs. It was also noted that the mean weight of passenger was assumed to be 140 lbs.
The special case of the gamma distribution in which a is a positive integer n is called an Erlang distribution. If we replace b by 1/l in Expression (4.8), the Erlang pdf is
(a) Determine the critical value(s) for a right-tailed test of a population mean at the α=0.10 level of significance with 15 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the α=0.01 level o..
A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position.
Find y(x) and check that your answer satisfies the differential equation and matches the initial condition.
Find a 90% confidence interval for the proportion of Americans who would agree with this. Interpret your interval in this context. Explain what "90% confidence" means.
A reasonable summary of the data might be provided by relating the score Si given by Si = 1 if never, Si = 2 if irregular, Si = 3 if fall and winter, and Si = 4 if whole year. What method can be used to relate mean BMD to this score variable?
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