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Find the exact area of the circle.  Round to the nearest hundredth.

Let U = {q, r, s, t, u, v, w, x, y, z}        A = {q, s, u, w, y}        B = {q, s, y, z}        C = {v, w, x, y, z} Determine 

A contractor is considering a sale that promises a profit of $35,000 with a probability of .7 or a loss (due to bad weather, strikes,….) of $4000 with a probability of .3.  What is the expected profit?

Determine the probability a student prefers meat given that the student is a junior.  Round your answer to three decimal places.

The figures below are similar.  Find the length of the side labeled x.  

A group of people are classified according to height and then random samples of people from each group are taken.  This is an example of what type of sampling?

Find the sample standard deviation of the following data set: 13, 8, 8, 18, 18, 6, 11, 10, 18

A survey of senior citizens at a doctor’s office shows that 40% take blood pressure lowering medication, 47% take cholesterol lowering medication, and 13% take both types of medication.  What is the probability that a senior citizen chosen at random either takes a blood pressure lowering or a cholesterol lowering medication?

At a lumber company that sold shelves, a customer could choose from 3 types of wood, 5 different widths, and 6 different lengths.  How many different types of shelves could be ordered?

Determine the probability that a randomly selected student is a freshman and prefers veggie toppings.  Round your answers to three decimal places.