Questions from Applied Statistics

Q: (a) Find 8! without a calculator. Show your

(a) Find 8! without a calculator. Show your work. (b) Use your calculator to find 32!. (c) Find 32! by typing “32!” in the Google search window. (d) Which method would you use most often? Why?

Q: (a) Find 20C5 without a calculator. Show your work

(a) Find 20C5 without a calculator. Show your work. (b) Use your calculator to find 20C5. (c) Find 20C5 by entering “20 choose 5” in the Google search window. (d) Which method would you use most often...

Q: American Express Business Travel uses a six-letter record locator number

American Express Business Travel uses a six-letter record locator number (RLN) for each client’s trip (e.g., KEZLFS). (a) How many different RLNs can be created using capital letters (A–Z)? (b) What i...

Q: “There is a 20% chance that a new stock offered

“There is a 20% chance that a new stock offered in an initial public offering (IPO) will reach or exceed its target price on the first day.”

Q: Until 2005, the UPC bar code had 12 digits (0

Until 2005, the UPC bar code had 12 digits (0–9). The first six digits represent the manufacturer, the next five represent the product, and the last is a check digit. (a) How many different manufactur...

Q: Bob has to study for four final exams: accounting (A

Bob has to study for four final exams: accounting (A), biology (B), communications (C), and drama (D). (a) If he studies one subject at a time, in how many different ways could he arrange them? (b) Li...

Q: Vail Resorts pays part-time seasonal employees at ski resorts on

Vail Resorts pays part-time seasonal employees at ski resorts on an hourly basis. At a certain mountain, the hourly rates have a normal distribution with σ 5 $3.00. If 20 percent of all part time seas...

Q: (a) In how many ways could you arrange seven books

(a) In how many ways could you arrange seven books on a shelf? (b) Would it be feasible to list the possible arrangements?

Q: Find the following permutations nPr: a. n =

Find the following permutations nPr: a. n = 8 and r = 3. b. n = 8 and r = 5. c. n = 8 and r = 1. d. n = 8 and r = 8.

Q: Find the following combinations nCr: a. n =

Find the following combinations nCr: a. n = 8 and r = 3. b. n = 8 and r = 5. c. n = 8 and r = 1. d. n = 8 and r = 8.