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This exam consists of three short cases: Case Points A fine red wine 120 Picture perfect cameras 110 Making food the world loves 120 Total 350   Answer the questions for each case. The cases/questions are not ordered by difficulty. If you are stuck, try the next question! For all questions, carry at least 6 decimal places throughout your calculations and use the decimals reported in the multiple choice answers for the final answer. If regression output is given, use the decimals reported in the regression output. Per student requests to reduce “scrolling fatigue”, the R output is also provided in a single downloadable Word file here: R_output_exam.docx

Which of the following produces the intrinsic factor in the stomach?

[FIXME] In the following code, find three errors or problems that will cause security issues (e.g., buffer overflow) or reliability issues (e.g., crash, significant slowdown) at runtime. For each error or problem, use one sentence to describe the error or problem (also list the line number), and use one sentence to  describe your fix. No syntax issues. [4 X 3pts]    

The kernel space runs on the ring 3 privilege level, and the user space runs on ring 0.

By introducing authority in the authentication, we can prevent confused deputy attacks.

COVID-19 peaks (positive test rates above average rates) have been observed during both winter and summer months in the US.

An epidemiologist is analyzing asthma case data for three states and find these results: State A: Population of 5 million, with an asthma rate of 8 per 1,000 people. State B: Population of 2 million, with an asthma rate of 12 per 1,000 people. State C: Population of 1 million, with an asthma rate of 10 per 1,000 people. What is the overall weighted average asthma rate (per 1,000 people) across all three states? (select one) What is the correct term to describe this rate? (select one)

Categorize the air pollution sources as stationary or mobile.

Find the indicated probability.Assume that the random variable X is normally distributed, with mean and standard deviation Compute the probability P(X < 90).

Provide an appropriate response.The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 4.0 and 6.5 minutes to find a parking spot in the library lot.