A saturated liquid has a quality of 0.

Which trace mineral is associated with the thyroid?

Which of the following electrolytes is primarily found outside of the cell?

Which of the following diseases results from vitamin C deficiency?

Which of the following is NOT a role of water?

Which of the vitamins is most likely to toxic affects?

Compute the standard deviation of X.

Suppose that you are given the distribution functions of two random variables X and Y. If Cov(X,Y)=0, are X and Y independent? Answer True/False below and provide a supporting reason on your scratch paper. An answer without a reason will receive 0. If this is not sufficient to determine whether they are independent, choose False and explain why.

Let X be a continuous random variable with the following probability density function:

In a store, the number of patients arriving in one-hour window to an emergency clinic follows a Poisson distribution with rate 25/hour. With 20% probability, each patient requires an operating room for an emergency surgery. Compute the expected number of operating rooms required per hour at this emergency clinic and its variance. Show your work on your scratch paper. Expected total required operating rooms = Variance of total required operating rooms =