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TB MC Qu. 5-69 Which statement is most consistent with Which statement is most consistent with the contingency table shown here? Survey question: Do you plan on retiring or keep working when you turn 65? Employee Retire (R) Work (W) Total Management (M) 13 18 3 1 Line worker (L) 39 54 93 Total 52 72 12 4 Multiple Choice 0 The decision to retire appears independent of the employee type. The decision to retire does not appear independent of the employee type. O The probability of a manager retiring at age 65 is .25. O The probability of retiring at age 65 is .25. TB MC Qu. 5-112 If four items are chosen at If four items are chosen at random without replacement from seven items, in how many ways can the four items be arranged, treating each arrangement as a different event (i.e., if order is important)? Multiple Choice 0 35 840 24 O O 5040 O TB MC Qu. 5-49 Find the probability that either event ... Find the probability that either event A or B occurs if the chance of A occurring is .5, the chance of B occurring is .3, and events A and B are independent. Multiple Choice O .80 O .15 65 O .85TB MC Qu. 5-75 Given the contingency table shown here Given the contingency table shown here, what is the probability that a mother in the study smoked during pregnancy? Smoked during Didn't Smoke during Mother's Education Pregnancy Pregnancy Row Total Below High School 393 640 1,033 High School 560 1,370 1,930 Some College 121 635 756 College Degree 48 550 598 Col Total 1,122 3,195 4,31? Multiple Choice . .2 599 O .3174 O .5000 O .7401 TB MC Ou. 5-90 Given the contingency table shown here Given the contingency table shown here, find P(F or 6). Gender Hale (M) Female (F) Col Total Multiple Choice Major Accounting General (A) Management (G) Economics (B) Row Total 210 180 140 530 150 160 160 470 360 340 300 1000 'l' 160 A70 .am 0 O .650 O TB MC Ou. 5-79 Given the contingency table shown here Given the contingency table shown here, if a mother attended some college but did not have a degree, what is the probability that she did not smoke during her pregnancy? Smoked during Didn't Smoke during Mother's Education Pregnancy Pregnancy Row Total Below High School 393 640 1,033 High School 560 1,370 1,930 Some College 121 635 756 College Degree 48 550 598 Col Total 1,122 3,195 4,317 Multiple Choice 0 .2736 .8399 .9197 O O .8752 O TB MC Qu. 5-100 If P(A n B) = .50, can P(A) = ... If P(A n B) = .50, can P(A) = .20? Multiple Choice O Only if P(A | B) = .10. O Not unless P(B) = .30. O Only if P (B n A ) = .60. O If P(A) = .20, then P(An B) cannot equal .50.TB TF Qu. 5-35 The union of two events is The union of two events is all outcomes in either or both, while the intersection is only those events in both. True or FaISQ True False TB MC Qu. 5-56 Given the contingency table shown here ... Given the contingency table shown here, find P(Wn S). Cell Phone Service Provider County Sprint (S) AT&T (A) Verizon (V) Row Total Macomb (M) 17 25 8 50 Oakland (0) 19 38 13 70 Wayne (W) 24 37 19 80 Col Total 60 100 40 200 Multiple Choice O .12 O .30 O 40 O 58TB MC Qu. 5-73 Given the contingency table shown here ... Given the contingency table shown here, find P(L or W). Survey question: Do you plan on retiring or keep working when you turn 65? Employee Retire (R) Work (W) Total Management (M) 13 18 31 Line worker (L) 39 54 93 Total 52 72 124 Multiple Choice O 750 O 588 O 435 O 895TB MC Qu. 5-124 From the following tree, find the ... From the following tree, find the probability that a randomly chosen person will get the flu vaccine and will also get the flu. 10 Getflu 70 Yes Don't get Received .90 flu flu vaccine? .40 Getflu .30 No .60 Don't get flu Multiple Choice O .10 O 07 O .19 O .70TB MC Ou. 5-47 Regarding probability, which of the following Regarding probability, which of the following is correct? Multiple Choice 0 Q When events A and Bare mutually exclusive, then HA n B] = PM) + PUB). The union of events A and 8 consists of all outcomes in the sample space that are contained in both eventA and event 8. When two events A and Bare independent. the joint probability of the events can be found by multiplying the probabilities of the individual events. The probability of the union of two events can exceed one. TB MC Ou. 5-109 Two events are complementary (i.e., they Two events are complementary (i.e., they are complements) if Multiple Choice 0 the product of their probabilities equals one. 0 their probabilities sum to one. Q the joint probability of the two events equals one. 0 they are independent events. TB TF Qu. 5-5 The probability of the union of ... The probability of the union of two events P(A or B) can exceed one. True or False True FalseTB MC Ou. 5-83 Given the contingency table shown here Given the contingencyr table shown here' what is the probability that a participant selected at random is a graduate student who opposes the change to a quarter system? Group Surveyed Opinion: Undergrads {U} Graduates (G) Faculty (F) Row Total Oppose Change (N) T3 2? 20 120 Favor Change (5} 2? 23 30 80 Col Total 100 50 50 200 Multiple Choice 0 .135 O .250 O .3?5 O .540 TB MC Qu. 5-107 Given the contingency table shown here ... Given the contingency table shown here, find A(VI S). Somerset Oakland Great Lakes Vehicle Type (S) (0) (G) Row Total Car (C) 44 49 36 129 Minivan (M) 21 15 18 54 Full-Size Van (F) 2 3 3 8 SUV (V) 19 27 26 72 Truck (T) 14 6 17 37 Col Total 100 100 100 300 Multiple Choice O 2639 O 1900 O 0475 O .4144TB TF Qu. 5-39 The value of 7! is 5040. The value of 7! is 5040. True or False True FalseTB MC Qu. 5-71 Given the contingency table shown here ... Given the contingency table shown here, find P(R n L). Survey question: Do you plan on retiring or keep working when you turn 65? Employee Retire (R) Work (W) Total Management (M) 13 18 31 Line worker (L) 39 54 93 Total 52 72 124 Multiple Choice O .250 O 315 O 425 O 850