🧩🔁🎯U8 (Probability) Flashcardizz Review

Front

What does it mean for an element to be in a set?

Back

An element is said to be in a set if it is one of the objects contained within that set. For example, if A = {6, 8, 10, 12}, then 5 is not in A, which is denoted as 5 ∉ A.

Front

What is the probability of rolling an even number on a six-sided die?

Back

Front

How do you calculate the probability of multiple independent events occurring?

Back

Front

What is the union of two sets?

Back

The union of two sets A and B, denoted as A ∪ B, is the set of elements that are in A, in B, or in both. For example, if A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, then A ∪ B = {1, 2, 3, 5, 7, 9}.

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What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment. For example, when rolling a six-sided die, the sample space is {1, 2, 3, 4, 5, 6}.

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What is the difference between a population and a sample?

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A population includes all members of a specified group, while a sample is a subset of the population used to represent the group.

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How do you find the probability of an event not occurring?

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The probability of an event not occurring is calculated as 1 minus the probability of the event occurring. If P(A) is the probability of event A, then the probability of A not occurring is P(A') = 1 - P(A).

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What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

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What is the complement of an event in probability?

Back

The complement of an event A, denoted as A', is the set of all outcomes in the sample space that are not in A.

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How do you interpret a probability of 0?

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A probability of 0 means that the event cannot occur; it is impossible.