Probability

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What is Probability?

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Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.

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What is a Complete Outfit in Probability?

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A complete outfit consists of a combination of clothing items, such as a coat, shirt, and pants. In probability, we can calculate the total number of outfits by multiplying the number of choices for each item.

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How do you calculate the total number of outfit combinations?

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To find the total number of outfit combinations, multiply the number of choices for each clothing item. For example, if there are 3 shirts and 4 pairs of pants, the total combinations are 3 x 4 = 12.

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What is a Tree Diagram?

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A tree diagram is a visual representation used to show all possible outcomes of an event. Each branch represents a choice, leading to further branches for subsequent choices.

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What is the formula for calculating probability?

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The probability of an event is calculated using the formula: Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

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What is a Spinner in Probability?

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A spinner is a tool used in probability experiments that can land on different outcomes. Each section of the spinner represents a possible outcome.

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What does it mean to have 'random selection'?

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Random selection means choosing items or outcomes without any specific pattern or bias, ensuring that each option has an equal chance of being chosen.

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What is a Combination in Probability?

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A combination is a selection of items where the order does not matter. For example, choosing 2 shirts from a set of 4 shirts is a combination.

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What is the difference between 'outcomes' and 'events'?

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An outcome is a possible result of a probability experiment, while an event is a specific set of outcomes. For example, rolling a die results in outcomes (1, 2, 3, 4, 5, 6), and an event could be rolling an even number (2, 4, 6).

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What is the probability of selecting a specific item from a set?

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The probability of selecting a specific item from a set is calculated by dividing the number of ways to choose that item by the total number of items in the set.