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The probability that a person in the United States has type O+ blood is 38%. Three unrelated Americans are selected at random. What is the probability that at least two out of the three have blood type O+.
Statistics and Probability, Statistics
Consider projects A and B with the following cash flows: C0 C1 C2 C3 A -$29 $18 $18 B -$54 29 29 What is the profitability index of each project? (Do not round intermediate calculations. Round your answers to 2 decimal ...
During a certain week the mean price of gasoline was $2.719 a gallon. A ronadom sample of 32 stations is drwn. What is the probability that the mean price was between $2.695 and $2.716. Assume o=$0.048.
In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...
In a sample of 150 hospital emergency admissions with a certain diagnosis, 128 listed vomiting as a presenting symptom. Do these data provide sufficient evidence to indicate, at the .01 level of significance, that the po ...
The pH (acidity) of the liquor is critical for regulating dye uptake and hence the final color. There are 5 kettles, all of which receive dye liquor from a common source. Past data show that pH varies according to a Norm ...
The following frequency table summarizes the distances in miles of 100 patients from a regional hospital. Distance Frequency 0-2 30 2-4 35 4-6 20 6-8 10 8-10 5 Calculate the sample variance and standard deviation for thi ...
European bonds pay coupons annually, while U.S. bonds pay coupons semiannually. If the coupon rate on a European bond is 12% (annual coupons), what is the comparable coupon rate for a U.S. bond (semiannual coupons) assum ...
Why is it that some people make very high returns on the stock market if it is so efficient? Is it more difficult to reconcile very high returns with efficient markets if the same people make extraordinary returns year a ...
1. According to the latest poll, 750 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults who believe in global warming. Round your lower bound and upper b ...
Question 1 (CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 4.9 hours with a standard deviation of 0.35 hours. What is the 95% confidence in ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As