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Suppose that 46% of people own dogs. If you pick two people at random, what is...
Suppose that 33% of people own dogs. If you pick two people at random, what is...
Suppose that 33% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 3 places) or fraction
Suppose that 15% of people own dogs. If you pick two people at random, what is...
Suppose that 15% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 4 places).
Suppose that 69% of people own fish. If you pick two people at random, what is...
Suppose that 69% of people own fish. If you pick two people at random, what is the probability that they both own a fish? Give your answer as a decimal at least 4 places.
Suppose that 62% of people like chocolate ice cream. If you pick two people at random,...
Suppose that 62% of people like chocolate ice cream. If you pick two people at random, what is the probability that they both like chocolate ice cream? Give your answer as a decimal (to at least 3 places) or fraction.
Obedience School for Dogs is a small franchise that offers obedience classes for dogs. Some people...
Obedience School for Dogs is a small franchise that offers obedience classes for dogs. Some people think that larger dogs are easier to train and, therefore, should not be charged as much for the classes. To investigate this claim, dogs enrolled in the classes were classified as large (?? pounds or more) or small (under ?? pounds). The dogs were also classified by whether or not they passed the obedience class offered by the franchise. ??% of the dogs involved...
At a sporting event, a concession stand that sells hot dogs has two options for condiments,...
At a sporting event, a concession stand that sells hot dogs has two options for condiments, ketchup and mustard. It is known that 77% of customers request ketchup on their hot dogs, 52% request mustard, and 44% request both. If a customer is selected at random, what is the probability that they prefer their hot dog to be plain, i.e., with neither ketchup nor mustard? Express your answer as a decimal rounded to two decimal places.
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 group of people were asked if they had run a red light in the last...
A group of people were asked if they had run a red light in the
last year. 402 responded "yes", and 233 responded "no".
Find the probability that if a person is chosen at random, they
have run a red light in the last year.
Give your answer as a fraction or decimal accurate to at least 3
decimal places
Calculator Check Answer Question 5 A group of people were asked if they had run a red light in...
X ~ N(60, 11). Suppose that you form random samples of 25 from this distribution. Let...
X ~ N(60, 11). Suppose that you form random samples of 25 from this distribution. Let X-bar be the random variable of averages. Let ΣX be the random variable of sums. a. Give the distribution of X bar (Enter an exact number as an integer, fraction, or decimal.) b. find the probability. (Round your answer to four decimal places.) P(X < 60) = c. Find the 40th percentile. (Round your answer to two decimal places.) d. find the probability. (Round...
In a large population, 68 % of the people have been vaccinated. If 3 people are...
In a large population, 68 % of the people have been vaccinated. If 3 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated? Give your answer as a decimal (to at least 3 places) or fraction.
Suppose that 15% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 4 places).
A group of people were asked if they had run a red light in the
last year. 402 responded "yes", and 233 responded "no".
Find the probability that if a person is chosen at random, they
have run a red light in the last year.
Give your answer as a fraction or decimal accurate to at least 3
decimal places
Calculator Check Answer Question 5 A group of people were asked if they had run a red light in...
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