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MATH 1280-01 Introduction to Statistics - AY2025-T5
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A lacrosse team is selecting a captain. The names of all the seniors are put into a hat, and the first three that are drawn will be the captains. The names are not replaced once they are drawn (one person cannot be two captains). You want to see if the captains all play the same position. Is this a binomial distribution? State why or why not.
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The monthly income of a group of 100 employees is normally distributed with a mean of $3,500 and a standard deviation of $400. What is the expected total income of all employees?
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In a binomial experiment, the trials are dependent on each other.
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What is the probability of getting a number greater than 6 on 1 dice?
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In a contingency table, if there are 100 total observations, 60 belong to A, 40 belong to B, and 20 belong to both A and B, what is P(A∪B)?
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A coin is tossed three times. The number of possible outcomes is ____.
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Listed here are the temperatures in °C for 10 days: –6, –8, 0, 3, 2, 0, 1, 5, 4, 4. What is the range of the data?
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What is the probability of a sure event?
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Which of the following is true about probabilities?
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Two dice are rolled. What is the probability that the sum of the numbers is 7?
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