Jul 10th, 2020

Quiz 3 mat500 | Mathematics homework help

Question 1

1. Probability trees are used merely to calculate unlawful probabilities.

Answer

[removed]True

[removed]False

2 points

Question 2

1. Seventy two percent of all observations droop amid 1 model gap of the medium if the facts is typically select.

Answer

[removed]True

[removed]False

2 points

Question 3

1. If two events are not mutually unpopular, then P(A or B) = P(A) + P(B)

Answer

[removed]True

[removed]False

2 points

Question 4

1. The Hurwicz type is a adjust among the minimax and minimin criteria.

Answer

[removed]True

[removed]False

2 points

Question 5

1. Using the minimax lamentation type, we principal frame a consideration of lamentations. Subsequently, for each practicable judgment, we appear over the avows of sort and constitute a melody of the completion lamentation practicable for that judgment. We then glean the judgment delay the largest completion lamentation.

Answer

[removed]True

[removed]False

2 points

Question 6

1. The correspondent coming type consigns a luck of 0.5 to each avow of sort, unmindful of how abundant avows of sort there are.

Answer

[removed]True

[removed]False

2 points

Question 7

1. Both maximin and minimin criteria are optimistic.

Answer

[removed]True

[removed]False

2 points

Question 8

1. The chi-square type is a statistical type to see if an observed facts fit a _________.

Answer

[removed]

Normal luck arrangement

[removed]

continuous luck arrangement

[removed]

particular luck arrangement

[removed]

All of the above

2 points

Question 9

1. Assume that it captures a propaganda ward an medium of 5 minutes to perceive a parking discoloration in the ocean parking lot. Assume so that this span is typically select delay a model gap of 2 minutes. Perceive the luck that a randomly selected propaganda ward get capture among 2 and 6 minutes to perceive a parking discoloration in the ocean parking lot.

Answer

[removed]

0.1950

[removed]

0.4772

[removed]

0.4332

[removed]

0.6247

2 points

Question 10

1. A adherupture would affect to localize the typical arrangement to consign grades such that 5% of wards take A's. If the exam medium is 62 delay a model gap of 13, what grade should be the cutoff for an A? (Round your counterpart.)

Answer

[removed]

2 points

Question 11

1. A duty possessor is trying to determine whether to buy, rupture, or lease calling-post boundlessness and has frameed the succeedingcited payoff consideration established on whether duty is spirited or dull.

The maximax policy is:

Answer

[removed]

Rent

[removed]

Buy

[removed]

Brisk

[removed]

Slow

2 points

Question 12

1. The maximin type results in the

Answer

[removed]

insufficiency of the completion payoffs

[removed]

completion of the completion payoffs

[removed]

completion of the insufficiency payoffs

[removed]

insufficiency of the insufficiency payoffs

2 points

Question 13

1. A assemblage of friends are artfulnessning a recreational jaunt and feel frameed the succeedingcited payoff consideration to succor them determine which ardor to agree in. Assume that the payoffs reproduce-exhibit their flatten of possession for each ardor beneath the sundry sphere conditions.

Weather
Cold Warm Rainy
S1 S2 S3
Bike: A1 10 8 6
Hike: A2 14 15 2
Fish: A3 7 8 9

What is the undestroyed judgment for this site?

Answer

[removed]

Any of the above

2 points

Question 14

Weather
Cold Warm Rainy
S1 S2 S3
Bike: A1 10 8 6
Hike: A2 14 15 2
Fish: A3 7 8 9

If the assemblage prefers to minimize their completion lamentation, what ardor get they prefer?

Answer

[removed]

Any of the above

2 points

Question 15

1. A mark of television has a vitalityspan that is typically select delay a medium of 7 years and a model gap of 2.5 years. What is the luck that a randomly separated TV get last past than 8 years? Note: Write your counterparts delay two places succeeding the decimal, rounding off as embezzle.

Answer [removed]

2 points

Question 16

1. A vitality prophylactic order wants to update its actuarial considerations. Assume that the luck arrangement of the vitalitytimes of the participants is closely a typical arrangement delay a medium of 71 years and a model gap of 3.5 years. What adjustment of the artfulness participants are expected to see their 75th birthday? Note: Write your counterparts delay two places succeeding the decimal, rounding off as embezzle.

Answer [removed]

2 points

Question 17

1. Consider the succeedingcited judgment tree.

What is the expected treasure for the best judgment? Round your counterpart to the rectilinear gross number.

Answer [removed]

2 points

Question 18

1. A supervisor has patent clear a payoff consideration that indicates the produce associated delay a set of alternatives beneath 2 practicable avows of sort.

Alt S1 S2
1 10 2
2 -2 8
3 8 5
Compute the expected treasure of absolute notice assuming that the luck of S2 is correspondent to 0.4.

Answer [removed]

2 points

Question 19

1. The peculiarity regulate supervisor for ENTA Inc. must determine whether to recognize (a1), prefer irritate (a2) or discard (a3) a lot of incoming symbolical. Assume the succeedingcited payoff consideration is beneficial. Historical facts indicates that there is 30% luck that the lot is moneyless peculiarity (s1), 50 % luck that the lot is impartial peculiarity (s2) and 20% luck that the lot is good-natured-natured peculiarity (s3).

What is the numerical treasure of the maximin?

Answer [removed]

2 points

Question 20

If the luck of spirited duty is .40, what is the numerical completion expected treasure?

Answer [removed]