Probability and Statistics Review

Front

What is the definition of Probability?

Back

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

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

Define the term 'Event' in probability.

Back

An event is a subset of a sample space, representing one or more outcomes.

Front

What does A∩B represent in set theory?

Back

A∩B represents the intersection of sets A and B, which includes all elements that are in both A and B.

Front

What does A∪B represent in set theory?

Back

A∪B represents the union of sets A and B, which includes all elements that are in either A or B.

Front

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

Back

The complement of a set A, denoted A', includes all elements not in A.

Front

How do you calculate the probability of an event?

Back

The probability of an event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is a Venn diagram?

Back

A Venn diagram is a visual representation of the relationships between different sets, often used to illustrate unions, intersections, and complements.

Front

If 30 students take Mathematics or Science, what does this imply about the total number of students?

Back

It implies that there are 30 students who are enrolled in at least one of the two subjects.

Front

How many students play football but do not wrestle if 18 senior boys play football and 9 play both sports?

Back

9 senior boys play football and wrestle, so 18 - 9 = 9 play football but do not wrestle.