Questions from Statistics Principles

Q: Because of a manufacturing error, three cans of regular soda were

Because of a manufacturing error, three cans of regular soda were accidentally filled with diet soda and placed into a 12-pack. Suppose that two cans are randomly selected from the 12-pack. (a) Determ...

Q: Interviews of 100 adults 18 years of age or older, conducted

Interviews of 100 adults 18 years of age or older, conducted nationwide, found that 44% could state the minimum age required for the office of U.S. president. Source: Newsweek Magazine.

Q: The following abstract appears in The New England Journal of Medicine:

The following abstract appears in The New England Journal of Medicine: BACKGROUND. The relation between passive smoking and lung cancer is of great public health importance. Some previous studies have...

Q: A bag of 30 tulip bulbs purchased from a nursery contains 12

A bag of 30 tulip bulbs purchased from a nursery contains 12 red tulip bulbs, 10 yellow tulip bulbs, and 8 purple tulip bulbs. Use a tree diagram like the one in Example 5 to answer the following: (a)...

Q: The local golf store sells an “onion bag” that contains

The local golf store sells an “onion bag” that contains 35 “experienced” golf balls. Suppose that the bag contains 20 Titleists, 8 Maxflis, and 7 Top Flites. Use a tree diagram like the one in Example...

Q: According to the National Center for Health Statistics, there is a

According to the National Center for Health Statistics, there is a 20.3% probability that a randomly selected resident of the United States aged 18 years or older is a smoker. In addition, there is a...

Q: According to the U.S. Bureau of Labor Statistics,

According to the U.S. Bureau of Labor Statistics, there is a 4.9% probability that a randomly selected employed individual has more than one job (a multiple-job holder). Also, there is a 46.6% probabi...

Q: Determine the probability that at least 2 people in a room of

Determine the probability that at least 2 people in a room of 10 people share the same birthday, ignoring leap years and assuming each birthday is equally likely, by answering the following questions:...

Q: Using the procedure given in Problem 33, compute the probability that

Using the procedure given in Problem 33, compute the probability that at least 2 people in a room of 23 people share the same birthday.

Q: The following data represent the number of different communication activities (e

The following data represent the number of different communication activities (e.g., cell phone, text messaging, e-mail, Instagram, and so on) used by a random sample of teenagers over the past 24 hou...