Sol 8.11 Probability

The outcome of one event does not affect the outcome of the second event.

• Dependent Event

• Independent Event

• Occurrence

• Compound Event

A reasonable guess as to what will happen

• Ratio

• Sample Space

• Probability

• Prediction

Happening or occurring at the same time

• Sample Space

• Favorable Outcome

• Prediction

• Simultaneously

The result(s) that you do not want to have happen in an event.

• Replacement

• Probability

• Favorable Outcome

• Unfavorable Outcome

What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

• 1/7

• 7/20

• 7/10

• 3/10

What is the probability you will choose either a black or white marble?

• 3/5

• 9/100

• 1/10

• 2/5

Clara picks a card at random, puts it back, and then picks another card at random.

• Independent

• Dependent

What is the probability of spinning the spinner and having it land on RED?

• 33%

• 50%

• 12%

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7

• 5/49

• 5/7

• 10/49

A jar contains 8 marbles: 3 are red and 5 are blue. What is the probability of selecting a red marble, replacing it, and then selecting another red marble?

• 9/64

• 6/56

• 15/64

• 25/64