Determining Probability

P(A) + P(not A) = 1

• True

• False

Which of the following expressions can be used to calculate the probability of two related events occurring?

• P(event) x 2

• P(event 1) +   P(event 2)

• P(event 1) x     P(event 2)

• P(event 1 + 2)

The likelihood that an event will NOT occur is known as its - 

• complement

• sample space

• opposite

• trial

If a coin is tossed 3 times, how many possible outcomes are in the sample space?

• 6

• 8

• 3

• It depends

Which of the following methods is NOT a good tool for determining sample space?

• tree diagrams

• area models

• organized lists

• guess and check

In compound probability, if one event does not affect the other event or events, it is referred to as - 

• theoretical probability

• independent probability

• experimental probability

• dependent probability

In compound probability, if one event affects another event we call it - 

• independent probability

• experimental probability

• simple probability

• dependent probability

When collected data is used to express probability, we call it - 

• theoretical probability

• experimental probability

• simple probability

• compound probability

The probability of an event occurring, P(A), can be expressed as a fraction, decimal, or percent.

• True

• False

Dylan made 15 out of 35 free throws.

What's his experimental probability as a simplified fraction?

• 3/7

• 15/35

• 1/2

• 5/7