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Twelve percent of people in a city eligible to donate blood actually do. You randomly select four eligible blood donors and ask them if they donate blood. Complete parts? (a) through? (d) below.
A. Find the mean of the binomial distribution. (round to nearest hundredth as needed)
B. Find the variance of the binomial distribution. (round to nearest hundredth as needed)
C. Find the standard deviation of the binomial distribution. (round to the nearest hundredth as needed)
D. On? average_ ,eligible? adult(s) out of every 4 gives blood. The standard deviation is?_, so in most samples of four eligible? adults, the number of adults who donate blood would differ from the average number by no more than _. (round to the nearest hundredth as needed)
Create percent frequency distribution tables for key variables: type of customer, net sales, method of payment, gender, marital status and age - Summarize the frequency, total amount spent and average amount spent by day of week and by type of brows..
The manufacturer of Feel Better aspirin advertises that 60% of pediatricians recommend Feel Better for children under twelve. Safe and Sound, a rival manufacturer
Given independent random variables with means and standard deviations as shown, find the mean and standard deviation of each of these variables:
assume that a procedure yields a binomial distribution with a trial repeated ntimes. use a binomial probabilities table
In real lotteries, there are many more choices (often 54) and you must match all five winning numbers. Explain how these changes affect your chances of hitting the jackpot.
Elizabeth Bailey is the owner and general manager of Princess Brides, which provides a wedding planning service in Southwest Louisiana.
q1. a manufacturing company measures the weight of boxes before shipping them to the customers. if the box weights have
Population was computed to be 126.9 grams and the standard deviation was 1.20 grams. which food results in more uniform weight.
Calculate the mean and standard deviation of the binomial distribution.- Using the binomial distribution tables, determine the probability that x will be exactly 8 homes heated with electricity.
If the person has 0.45 probability to watch the program on Monday, the probability that the person watches the program on Wednesday is:
last weeks sales of imac computers at an apple store in oklahoma city ok are shown in the following tabledaysales
Under the new structure of the sample, how will the answers to a, b, and c change and create a 95-percent confidence interval for the average distance of Brand A
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