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Exacta In a horse race, an exacta bet is won by correctly selecting the horses that finish first and second, and they must be in the order that they finished. The 140th Kentucky Derby race was run with 19 horses. If you make random selections for an exacta bet, what is the probability of winning?

In Exercises 13鈥�20, express the indicated degree of likelihood as a probability value between 0 and 1.

Job Applicant Mistakes Based on an Adecco survey of hiring managers who were asked to identify the biggest mistakes that job candidates make during an interview, there is a 50鈥�50 chance that they will identify 鈥渋nappropriate attire.鈥�

In Exercises 5鈥�36, express all probabilities as fractions.

Teed Off When four golfers are about to begin a game, they often toss a tee to randomly select the order in which they tee off. What is the probability that they tee off in alphabetical order by last name?

In Exercises 9鈥�20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order from Burger King or Taco Bell or an order that is accurate.

In Exercises 5鈥�36, express all probabilities as fractions.

ZIP Code If you randomly select five digits, each between 0 and 9, with repetition allowed, what is the probability you will get the author鈥檚 ZIP code?

In Exercises 13鈥�20, express the indicated degree of likelihood as a probability value between 0 and 1.

Square Peg Sydney Smith wrote in 鈥淥n the Conduct of the Understanding鈥� that it is impossible to fit a square peg in a round hole.

In Exercises 17鈥�20, refer to the accompanying table showing results from a Chembio test for hepatitis C among HIV-infected patients (based on data from a variety of sources).

Positive Predictive Value Find the positive predictive value for the test. That is, find the probability that a subject has hepatitis C, given that the test yields a positive result. Does the result make the test appear to be effective?

In Exercises 9鈥�20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

Fast Food Drive-Thru Accuracy If three different orders are selected, find the probability that they are all from 奥别苍诲测鈥檚

In Exercises 1鈥�10, use the data in the accompanying table and express all results in decimal form. (The data are from 鈥淢ortality Reduction with Air Bag and Seat Belt Use in Head-On Passenger Car Collisions,鈥� by Crandall, Olson, and Sklar, American Journal of Epidemiology, Vol. 153, No. 3.) Drivers Involved in Head-On Collision of Passenger Cars.

Drivers Involved in Head-On Collision of Passenger Cars

Seatbelt Use Find the probability of randomly selecting a driver and getting one who was not killed given that the driver was using a seatbelt.

Rain As the author is creating this exercise, a weather reporter stated that there is a 20% chance of rain tomorrow. What is the probability of no rain tomorrow?