Statistics and Probability

What is the term for the likelihood of an event occurring, expressed as a number between 0 and 1?

Note: The answer must be in UPPERCASE. Wrong input wrong!

What do we call a single result of an experiment?

• Event

• Experiment

• Probability

• Outcome

What is the probability of the union of two mutually exclusive events?

• 0

• 1

• Between 0 and 1

• None of these

Which term represents the combined probability of two events occurring together or separately?

• Complement

• Conditional probability

• Intersection

• Union

If the probability of event A occurring is 0.6 and the probability of event B occurring is 0.5, what is the probability of the union of events A and B?

• 0.3

• 0.5

• 0.8

• 1

What does the term "union of events" refer to in probability theory?

• The intersection of two events

• The complement of an event

• The probability of an event occurring

•  The combination of two or more events

In a bag, there are 5 red marbles, 3 blue marbles, and 2 green marbles. If one marble is randomly selected from the bag, what is the probability of selecting a blue marble?

• 3/10

• 1/2

• 5/10

• 2

A bag contains 7 white balls, 11 orange balls and 12 red balls. If a ball is drawn, find the probability that is a white or a red ball. 

• 19/30

• 2/15

• 1/30

• 11/30

The probability of the union of two events A and B can be calculated using the formula P (A ∪ B) = P(A) + P (B) – P (A ∩ B).

• TRUE

• FALSE

The probability of the union of two events is always less than or equal to the sum of their individual probabilities.

• TRUE

• FALSE