4 men throw their watches into the sea, and the sea brings back at random one...
4 men throw their watches into the sea, and the sea brings back at random one watch for every man. What is the probability that at least 1 man gets his own watch back?
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4 men throw their watches into the sea, and the sea brings back
at random one...
7. A dog watches as a human places 4 cups upside down in a row on...
7. A dog watches as a human places 4 cups upside down in a row on a table. The human places a dog treat under one of the cups as the dog watches, and then the human quickly rearranges the cups. The dog then chooses one of the cups; if the chosen cup has the treat underneath it, the dog gets the treat. (In case the setup for this problem is unclear - and also just for fun - here's...
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and...
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and 35 studied both mathematics and history. If one of these students is selected at random, find the probability that (a) the student took mathematics or history; (b) the student did not take either of these subjects; (c) the student took history but not mathematics. . . . The probability that a married man watches a certain television show is 0.4, and the probability that...
Each one of n persons, indexed by 1,2,…,n, has a clean hat and throws it into...
Each one of n persons, indexed by 1,2,…,n, has a clean hat and throws it into a box. The persons then pick hats from the box, at random. Every assignment of the hats to the persons is equally likely. In an equivalent model, each person picks a hat, one at a time, in the order of their index, with each one of the remaining hats being equally likely to be picked. Find the probability of the following events. (You need...
A random sample of adult drivers was obtained, 53% men and 46% women. A survey showed...
A random sample of adult drivers was obtained, 53% men and 46% women. A survey showed that 57% of the drivers rely on GPS systems. 32% of the drivers are men and use GPS while 24% of the drivers are women and use GPS. Suppose a person included in this survey is randomly selected. a.) Suppose the person selected is a man. What is the probability that he relies on a GPS system? Your answer should have at least 3...
A random sample of adult drivers was obtained, 55% men and 43% women. A survey showed...
A random sample of adult drivers was obtained, 55% men and 43% women. A survey showed that 57% of the drivers rely on GPS systems. 32% of the drivers are men and use GPS while 21% of the drivers are women and use GPS. Suppose a person included in this survey is randomly selected. a) Suppose the person selected is a man. What is the probability that he relies on a GPS system? Your answer should have at least 3...
1. In a certain business there are bosses and workers, women and men. If a person is picked at random, the probability...
1. In a certain business there are bosses and workers, women and men. If a person is picked at random, the probability of being a boss is .20. If a person is picked at random, the probability of being a woman is 40. Fill in the below table's joint probabilities, assuming work status and gender are independent. Bosses Workers Women Men 2. If the probability of picking someone who is a woman and a boss is.10, what is the probability...
1.) Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches...
1.) Accrotime is a manufacturer of quartz crystal watches.
Accrotime researchers have shown that the watches have an average
life of 30 months before certain electronic components deteriorate,
causing the watch to become unreliable. The standard deviation of
watch lifetimes is 10 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace?
(b) If Accrotime...
1. The hats of n persons are so that every assignment of the hats to the...
1. The hats of n persons are so that every assignment of the hats to the persons is equally likely). What is the probability thrown into a box. The persons then pick up their hats at random (i.e., that (a) every person gets his or her hat back? (b) the first m persons who picked hats get their own hats back? (c) everyone among the first m persons to pick up the hats gets back a hat belonging to one...
please show work men 2.5 inches. 7. Heights of are normally distributed with el= 69 inches...
please show work
men 2.5 inches. 7. Heights of are normally distributed with el= 69 inches a) One is selected at random, find the probability that his height is man more than 71 inches, b) A sample of 4 men is selected at random, find the probability that height is more than 71 inches. their mean
1) Brooks Insurance Inc. wishes to offer life insurance to men age 60 via the Internet...
1) Brooks Insurance Inc. wishes to offer life insurance to men age 60 via the Internet Mortality tables indicate the likelihood of a 60-year-old man surviving another year is .98. If the policy is offered to five men age 60 a. What is the probability all five men survive the year? b. What is the probability at least one does not survive? 2) With each purchase of a large pizza at Tony's Pizza, the customer receives a coupon that can...
7. A dog watches as a human places 4 cups upside down in a row on a table. The human places a dog treat under one of the cups as the dog watches, and then the human quickly rearranges the cups. The dog then chooses one of the cups; if the chosen cup has the treat underneath it, the dog gets the treat. (In case the setup for this problem is unclear - and also just for fun - here's...
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and 35 studied both mathematics and history. If one of these students is selected at random, find the probability that (a) the student took mathematics or history; (b) the student did not take either of these subjects; (c) the student took history but not mathematics. . . . The probability that a married man watches a certain television show is 0.4, and the probability that...
1. In a certain business there are bosses and workers, women and men. If a person is picked at random, the probability of being a boss is .20. If a person is picked at random, the probability of being a woman is 40. Fill in the below table's joint probabilities, assuming work status and gender are independent. Bosses Workers Women Men 2. If the probability of picking someone who is a woman and a boss is.10, what is the probability...
1.) Accrotime is a manufacturer of quartz crystal watches.
Accrotime researchers have shown that the watches have an average
life of 30 months before certain electronic components deteriorate,
causing the watch to become unreliable. The standard deviation of
watch lifetimes is 10 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace?
(b) If Accrotime...
1. The hats of n persons are so that every assignment of the hats to the persons is equally likely). What is the probability thrown into a box. The persons then pick up their hats at random (i.e., that (a) every person gets his or her hat back? (b) the first m persons who picked hats get their own hats back? (c) everyone among the first m persons to pick up the hats gets back a hat belonging to one...
please show work
men 2.5 inches. 7. Heights of are normally distributed with el= 69 inches a) One is selected at random, find the probability that his height is man more than 71 inches, b) A sample of 4 men is selected at random, find the probability that height is more than 71 inches. their mean
1) Brooks Insurance Inc. wishes to offer life insurance to men age 60 via the Internet Mortality tables indicate the likelihood of a 60-year-old man surviving another year is .98. If the policy is offered to five men age 60 a. What is the probability all five men survive the year? b. What is the probability at least one does not survive? 2) With each purchase of a large pizza at Tony's Pizza, the customer receives a coupon that can...
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