How would the income effect of a price change be demonstrated by a $10 reduction in the price of tickets to a concert that resulted in a sell-out crowd?

Why would demand for one fast-food restaurant’s hamburgers grow if the price of the hamburgers at the fast-food restaurant across the street increased by $0.50?

On Saturday nights, lots of people attend movies at the State Theater. Attendance depends at least in part on the price of tickets. At the current price of $8 per ticket, an average of 285 tickets are sold each Saturday night. What is the demand and what is the quantity demanded in this example?

Using consumer goods and capital goods in a production possibilities frontier, what conditions would produce a straight-line PPF? What does this indicate about opportunity cost along the PPF, and why?

Consider a bivariate normal distribution with $\mu 1=1, \mu 2=3, \sigma 11=2, \sigma 22=1$ and $\rho 12=-.8$. (a) Write out the bivariate normal density. (b) Write out the squared statistical distance expression $(x-\mu)^{\prime} \Sigma-1(x-\mu)$ as a quadratic function of $x_{1}$ and $x_{2}$.

According to the American Red Cross, about one out of nine people in the U.S. have Type B blood. Suppose the blood types of people arriving at a blood drive are independent. In this case, the number of Type B blood types that arrive roughly follows the Poisson distribution.

What is the probability that over 10 people out of these 100 have type B blood?

For each of the following sentences, write the correct form of the italicized verb in parentheses.

She (fing) open the door and raced out of the house.

The volume of water in a tank t min after it starts draining is $V(t)=350(20-t)^{2} \mathrm{L}$.

How fast is the water draining out after 5 min? after 15 min?

Which situation would most likely be represented by a negative correlation: hours of practice and your golf score, hours of practice and the number of baskets you make in basketball, or hours of practice and the cost of a computer? Hint: In golf, the lower the score, the better.

Use the key terms to complete the following sentence:

A demand deposit called a(n) __________ may have restrictions and/or penalties for taking out money.

Write out and evaluate each sum.

$$\sum_{k=0}^5\left(k^2-2 k+3\right)$$

Write each pronoun and identify its antecedent if it has one.

The best way to find out is to ask the ticket sellers themselves.

a) Find a recurrence relation for the number of ways to lay out a walkway with slate tiles if the tiles are red, green, or gray, so that no two red tiles are adjacent and tiles of the same color are considered indistinguishable. b) What are the initial conditions for the recurrence relation in part (a)? c) How many ways are there to lay out a path of seven tiles as described in part (a)?

For a business using just-in-time inventory, a delivery of Q items arrives just as the last item is shipped out. Suppose that items are shipped out at a nonconstant rate such that $f(t)=Q-r \sqrt{t}$ gives the number of items in inventory. Find the time T at which the next shipment must arrive. Find the average value of f on the interval [0, T].