Theoretical Probability

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What is theoretical probability?

Back

Theoretical probability is the likelihood of an event happening based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

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How do you calculate the probability of picking a quarter from a bag containing 5 quarters, 2 dimes, and 4 pennies?

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The probability is calculated as the number of quarters (5) divided by the total number of coins (5 + 2 + 4 = 11), which is 5/11.

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What is the theoretical probability of NOT landing on yellow if a spinner has 1 yellow and 7 other colors?

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The probability is calculated as the number of non-yellow outcomes (7) divided by the total outcomes (8), which is 7/8.

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What is the theoretical probability of rolling a 3 on a fair number cube?

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The probability is calculated as the number of favorable outcomes (1 for rolling a 3) divided by the total outcomes (6), which is 1/6.

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How do you find the theoretical probability of picking an even number from a set of numbers 1 to 20?

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The probability is calculated as the number of even numbers (10) divided by the total numbers (20), which is 1/2.

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What is the total number of possible outcomes when spinning a spinner with 4 equal sections?

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The total number of possible outcomes is 4.

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What is the formula for calculating theoretical probability?

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The formula is: Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

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If a bag contains 3 red, 2 blue, and 5 green marbles, what is the probability of picking a blue marble?

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The probability is calculated as the number of blue marbles (2) divided by the total number of marbles (3 + 2 + 5 = 10), which is 2/10 or 1/5.

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What is the probability of rolling an even number on a fair number cube?

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The probability is calculated as the number of even outcomes (3: 2, 4, 6) divided by the total outcomes (6), which is 3/6 or 1/2.

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In a deck of cards, what is the probability of drawing a heart?

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The probability is calculated as the number of hearts (13) divided by the total number of cards (52), which is 13/52 or 1/4.