Testbanks 5 for Statistics II with complete solutions

1) word D Giorgio offers the person who purchases an 8-ounce bottle of Allure two free gifts, chosen from the following: an umbrella, a 1-ounce bottle of Midnight, a feminine shaving kit, a raincoat, or a pair of rain boots. If you purchased Allure, what is the probability you randomly selected an umbrella and a shaving kit in that order? A) 1.00 B) 0.00 C) 0.05 D) 0.20 1/5*1/4=C 00:02 01:27 3)word D 4) Probabilities are important information when ________. A) Using inferential statistics B) Summarizing a data set with a frequency chart C) Computing cumulative frequencies D) Applying descriptive statistics A 5) In a management trainee program, 80% of the trainees are female, while 20% are male. Ninety percent of the females attended college; 78% of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a female who attended college? A) 0.25 B) 0.08 C) 0.72 D) 0.20 C 6) The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse, size medium. The code group 2031 might identify a pair of pants, size 18, and so on. Repetitions of numbers are not permittedin other words, the same number cannot be used more than once in a total sequence. As examples, 2,256, 2,562, or 5,559 would not be permitted. How many different code groups can be designed? A) 5,040 B) 120 C) 10,200 D) 620 A 7)word A 8) In a management trainee program, 80% of the trainees are female, while 20% are male. Ninety percent of the females attended college; 78% of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a male who did NOT attend college? A) P (male) P (did not attend college) B) P (did not attend college) P (male | did not attend college) C) P (male) P (did not attend college | male) D) P (did not attend college) C 9) What does the complement rule state? A) P(A) = P(A)X + P(B) B) P(A) = 1 - P(notA) C) P(A) = P(A) × P(B) D) P(A) = P(A) - P(B) B 10) A gumball machine has just been filled with 50 black, 150 white, 100 red, and 100 yellow gumballs that have been thoroughly mixed. Sue and Jim each purchase one gumball. What is the likelihood that both Sue and Jim will get red gumballs? A) 0.75 B) 0.062 C) 0.50 D) 0.33 B 11) To apply the special rule of addition, the events must be ________. mutually exclusive 12) A collection of one or more possible outcomes of an experiment is called a(n) ________. event 13) The probability of selecting a professor who is male and has a master's degree is called a(n) ________. joint probability 14) Complete the following analogy: An experiment relates to outcome, as the role of a die relates to ________. any one value between 1 and 6 15) One card will be randomly selected from a standard 52-card deck. The probability that it will be the jack of hearts is ________. 1/52 or 0.0192 16) To apply the special rule of addition, the events must be mutually exclusive. True 17) Bayes' theorem is a method to revise the probability of an event given additional information. True 18) If two events are mutually exclusive, then P(A and B) = P(A)P(B). False 19) The complement rule states that the probability of an event not occurring is equal to one minus the probability of its occurrence. True 20) The joint probability of two events, A and B, that are not independent is computed as P(A and B) = P(A) P(B|A). True word 0.05