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Math Quiz -Statistics and Probability

Covering: mean, median, mode, range, standard deviation, data interpretation through graphs and charts, and basic probability, including compound events and independent events.

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1. A box contains 5 red balls, 3 blue balls, and 2 yellow balls. If a ball is chosen randomly and then replaced before a second ball is chosen, what is the probability of choosing a red ball followed by a yellow ball?

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2. A die is rolled twice. What is the probability of getting a sum of 7 from the two rolls?

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3. A school has 200 students: 100 boys and 100 girls. If 60% of the boys play basketball and 50% of the girls play soccer, how many students do not play either sport?

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4. Over the course of a week, the number of text messages received by a student each day was as follows: 20, 15, 30, 25, 15, 35, 50. What is the median of these text messages received?

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5. The scores of five students on a mathematics test are: 80, 84, 91, 75, and 92. What is the median score?

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