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 33% of people own dogs. If you pick two people at random, what is...
Suppose that 46% 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 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 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, 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 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...
Part 1. Suppose you have a cookie jar that contains 13 chocolate chip cookies and 33 oatmeal cookies. If you reach in the jar and pull out 2 cookies at random, find the probability that both are chocolate chip. Express answer to two decimal places. Part 2. You decide it would be fun to go to a magic show. The magician picks you out of the crowd and writes down 3 digits (0-9) at random without replacement. He writes them...
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.
Are dog owners more likely to be atheletes? 297 people in Portland were selected at random and characterized as to whether they owned a dog and whether their interest in sports was above average, average, or below average. The results are presented in the following tablet Interest in Sports Above average Average Below averages Yes 49 43 33 No 29 76 67 a. What is the proportion of people in the sample who own a dog? (answer using a decimal...
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-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...