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Recent questions in College Statistics
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Jason Yuhas 2022-01-19What are the mean and standard deviation of a binomial probability distribution with n = 88 and
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namenerk 2022-01-19What is the formula for standard deviation of grouped data?
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Osvaldo Apodaca 2022-01-18Products from a certain machine are too large 15% of the time. What is the probability that in a run of 20 parts, 5 are too large?
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Francisca Rodden 2022-01-18Brock scored the following number of goals in her soccer games: 2, 3, 1, 0, 3, 2,1, 2. What is the mean of the data?
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feminizmiki 2022-01-18What is the standard deviation of {11, 23, 3, 1, 500, 27, 18, 14, 2}?
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Jean Blumer 2022-01-18How can you use the standard deviation to calculate variance?
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Painevg 2022-01-18If the price of gasoline follows a normal distribution, has a mean of $2.30 per gallon, and a standard deviation of $0.10 per gallon. What percentage of gasoline is sold between $2.20 and $2.40 per gallon?
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veksetz 2022-01-18Is the following distribution a discrete probability distribution? If not, why?
X P(x)
100 0.25
200 0.25
300 0.25
400 0.25
500 0.25
X P(x)
100 0.25
200 0.25
300 0.25
400 0.25
500 0.25
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Roger Smith 2022-01-18What is a discrete probability distribution? What two conditions determine a probability distribution?
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Cynthia Bell 2022-01-18What is the distinction between a discrete random variable and a continuous random variable?
What is the distinction between a discrete random variable and a continuous random variable?
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nemired9 2022-01-18If we were to toss a single die (singular for dice) 1000 times, how many 6s could we expect over the long run? What is the standard deviation?
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Deragz 2022-01-18The number of cases of tetanus reported in the US in a single month has a Poisson distribution with a parameter of
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Ben Shaver 2022-01-18What is the probability distribution of rolling a single die?
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Vikolers6 2022-01-18In terms of the parameters of the probability mass function, what is the formula for the standard deviation of a Poisson distribution?
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Jessie Lee 2022-01-18Is the blood pressure of a group of student the day before their final exam a discrete or continuous variable?
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Terrie Lang 2022-01-18Is a gallon of orange juice a discrete or continuous variable?
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guringpw 2022-01-18Is the fuel efficiency (in miles per gallon) of an automobile a discrete or continuous variable?
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ajedrezlaproa6j 2022-01-18You have studied the number of people waiting in line at your bank on Friday afternoon at 3 pm for many years, and have created a probability distribution for 0, 1, 2, 3, or 4 people in line. The probabilities are 0.1, 0.3, 0.4, 0.1, and 0.1, respectively. What is the probability that at least 3 people are in line at 3 pm on Friday afternoon?
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Judith McQueen 2022-01-18You roll three dice, and you define the random variable X as the number of heads obtained. What are all possible values of the random variable X?
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