Grade 12 Quizzes, Questions & Answers
Recent Grade 12 Quizzes
This quiz focuses on applying expected value to real-world decisions. It explores situations involving carnival games, lotteries, insurance policies, and investments, where the goal is to evaluate the expected net gains or losses...
Questions: 21 | Attempts: 10 | Last updated: Jan 23, 2026
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Sample QuestionWhat is the expected payout (before subtracting the $3 cost) of one spin?
This quiz will help you calculate expected values for discrete distributions. It includes problems involving random variables such as arcade tickets, raffles, dice rolls, and defects per item, helping you understand the expected...
Questions: 24 | Attempts: 10 | Last updated: Jan 23, 2026
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Sample QuestionWhat is the expected value (mean) of tickets won per game?
This quiz tests your understanding of expected value concepts and their interpretation in probability distributions. Questions involve calculating expected values for discrete random variables, interpreting them in real-world...
Questions: 22 | Attempts: 12 | Last updated: Jan 23, 2026
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Sample QuestionWhat does the expected value of a random variable represent?
This quiz provides practical exercises in constructing Cumulative Distribution Tables (CDF tables) and interpreting them. The goal is to calculate cumulative frequencies, cumulative relative frequencies, and construct cumulative...
Questions: 23 | Attempts: 12 | Last updated: Jan 23, 2026
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Sample QuestionWhat is the cumulative frequency for students who studied 8 hours or less?
Ever wondered what a PDF looks like for a uniform distribution? This quiz shows how probability spreads evenly across an interval and what the density function tells you. You’ll read graphs, interpret heights, and...
Questions: 20 | Attempts: 11 | Last updated: Dec 16, 2025
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Sample QuestionFor a continuous uniform distribution on [a, b], what is the correct probability density function (PDF) f(x)?
This quiz focuses on the concept of Cumulative Distribution Functions (CDF) and their application in discrete and continuous random variables. It covers fundamental questions such as how to calculate cumulative probabilities,...
Questions: 22 | Attempts: 12 | Last updated: Jan 23, 2026
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Sample QuestionWhat is F(0)?
Apply trigonometric motion models to analyze real data from satellites, moons, and planets. You will interpret graphs, calculate maximum and minimum distances, and relate time and position to orbital paths. Through realistic...
Questions: 20 | Attempts: 10 | Last updated: Jan 22, 2026
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Sample QuestionA satellite’s distance from Earth’s center is modeled by d(t) = 6800 + 400 cos(0.25 t) km, where t is in hours. What is the maximum distance?
This final quiz challenges you to apply your knowledge of binomial distributions to solve real-world problems. Whether it’s quality control in manufacturing, sales performance in customer service, or predicting outcomes in...
Questions: 23 | Attempts: 15 | Last updated: Jan 23, 2026
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Sample QuestionWhat is the probability that exactly 2 of the 10 bulbs are defective?
In this quiz, you’ll explore the mean (expected value) and variance of binomial distributions. You’ll calculate the expected number of successes and understand how spread out the results are using the formulas for...
Questions: 22 | Attempts: 10 | Last updated: Jan 23, 2026
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Sample QuestionA binomial distribution has n = 50 trials and probability of success p = 0.4. What is the mean (expected value) of this distribution?
Here, you'll calculate probabilities using the binomial distribution formula. This involves finding the probability of getting a specific number of successes in a fixed number of trials. Using real-world examples like coin...
Questions: 24 | Attempts: 10 | Last updated: Jan 23, 2026
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Sample QuestionWhat is P(X = 5)?
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