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Front

What is the universal set?

Back

The universal set, denoted as U, is the set that contains all possible elements relevant to a particular discussion or problem.

Front

What is the complement of a set W, denoted as W'?

Back

The complement of a set W consists of all elements in the universal set U that are not in W.

Front

If U = {1, 3, 5, 7, 9, 11, 13, 15, 17} and W = {5, 7, 9, 11}, what is W'?

Back

W' = {1, 3, 13, 15, 17}

Front

What does the union of two sets A and B, denoted as A ∪ B, represent?

Back

The union of two sets A and B is the set of elements that are in A, in B, or in both.

Front

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∪ B?

Back

A ∪ B = {1, 2, 3, 5, 7, 9}

Front

What does the intersection of two sets A and B, denoted as A ∩ B, represent?

Back

The intersection of two sets A and B is the set of elements that are common to both A and B.

Front

What does the statement 'A and B' mean in set theory?

Back

The statement 'A and B' refers to the intersection of sets A and B, meaning elements that are in both sets.

Front

What is the probability of an event?

Back

The probability of an event is a measure of the likelihood that the event will occur, expressed as a number between 0 and 1.

Front

If the probability of choosing a black marble is 3/5, what is the probability of not choosing a black marble?

Back

The probability of not choosing a black marble is 1 - P(black) = 1 - 3/5 = 2/5.

Front

How do you calculate the percentage of a group?

Back

To calculate the percentage, divide the part by the whole and multiply by 100.