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In the 18th century, the Chevalier de Mere asked Blaise Pascal to compare the probabilities of two events. Below, you will compute the probability of the two events that, prior to contrary gambling experience, were thought by de Mere to be equally likely.
a What is the probability of obtaining at least one 6 in four rolls of a fair die?
b If a pair of fair dice is tossed 24 times, what is the probability of at least one double six?
What is the probability that the first card dealt is an ace of spade?
1. For the data of Example, ?nd the variance in?ation factors, and comment on their relative magnitudes. 2. Find the correlation between X1 and X 2 for the data of Example 11-1 pre- sented in Table 11-1. Is multicollinearity a problem here? Also ?n..
A random sample of 35m of the firm's accountants has a mean workday of 8.2 hours with a standard deviation of 0.5 hour. At α = 0.01, can you support the CEO's claim?
an insurance company offers a policy for a 100000 in the case of death during a calendar year for its young customers.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
data from previous years reveal that the distribution of the final exam scores in an introductory stats class is
Suppose that distinct integer values are written on each of 3 cards. These cards are then randomly given the designations A, B, and C. The values on cards A and B are then compared. If the smaller of these values is then compared with the value on..
What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
For the population with standard deviation of σ =10 a score of x=44 corresponds to z= -0.50. Determine the population mean?
an experimenter wants to conduct a hypothesis test on a claim that there was no difference between two population
a major department store chain had planned to reach a sales goal of 50 refrigerators per store at a recent
In a study of warp breakage during the weaving of fabric (Technometrics, 1982: 63), 100 specimens of yarn were tested. The number of cycles of strain to breakage was determined for each yarn specimen, resulting in the following data:
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