Probabilities of Simple and Compound Events

a measure of the likelihood that an event will occur

a way of assigning numerical value to the chance than an event will occur

often written as

P(event)

• probability

• experiment

• event

• outcome

an event consisting of one outcome

• simple event

• event

• probability

• equally likely

the mathematical calculation that an event will happen in theory

• theoretical probability

• experimental probability

• probability

• complementary events

combines two or more events using the word "and" or the word "or"

• compound event

• complementary event

• event

• experiment

The sample space tree diagram for a team of three students is shown.  What is the probability that the team would consist of at least 2 girls?

• ½

• ⅜

• ¾

• ⅙

What is the probability of drawing a blue color and a number 4?

• 2/5

• 1/6

• 3/15

• 1/15

an event with a probability of zero

• impossible

• mutually exclusive

• outcome

• outcome

The measure of the likelihood that an event will occur. The chance that an event will happen. A ratio of chance/all chances.

• odds

• probability

• outcomes

• tree diagram

Mathematical calculation that an even will happen in theory.

• odds

• theoretical probability

• outcomes

• dependent event

One outcome or collection of outcomes

• simple event

• experimental probability

• theoretical probability

• fundamental counting principle