A survey report states that 33% of adults visit their doctor regularly.  Suppose that 12 adults are selected at random. a) Let X represents the number of adults visit their doctor regularly.  Is X a binomial? b) What is the probability that exactly 4 adults visit their doctor regularly in such group? c) Find the mean and standard deviation for the number of adults that visit their doctor regularly in such group of 12 adults. d) Is it unusual to have 8 or more adults that visit their doctor regularly in such group of 12 adults?  Explain.

A survey report states that 41% of adults visit their doctor regularly.  Suppose that 12 adults are selected at random. a) Let X represents the number of adults visit their doctor regularly.  Is X a binomial? b) What is the probability that exactly 4 adults visit their doctor regularly in such group? c) Find the mean and standard deviation for the number of adults that visit their doctor regularly in such group of 12 adults. d) Is it unusual to have 9 or more adults that visit their doctor regularly in such group of 12 adults?  Explain.

A contractor is considering a sale that promises a profit of $58,000 with a probability of 0.84 or a loss (due to bad weather, strikes, and such) of $17,000 with a probability of 0.16.  What is the expected profit?

A small computing center has found that the number of jobs submitted per day to its computers has a mean of 82 jobs and a standard deviation of 14 jobs.  What is the minimum percentage of the number of jobs will be submitted between 40 and 124 per day?  Also, name the rule that you used in answering this question.

Use the side-by-side boxplots below to answer the question. The boxplots summarize the number of sentenced prisoners by state in the Midwest and West.Based on the boxplot for the Midwest, which of the following is true?

Sam Jones ran as a supporter of the legacy and policies of Huey P Long.

What species (metabolites) are not visible on long TE MR Spectroscopy acquisitions? You may select more than one.

Ideally the “g-factor” in a GRAPPA acquisition should be: 

What is “spin-spin splitting”?  How does increasing the TE affect the “spin-spin splitting”?

A GRAPPA acquisition uses an acceleration factor (AF) equal to 4.  The “geometry factor” g is equal to 2.   The factor by which the SNR will be reduced compared to a conventional acquisition (without parallel imaging) will be: