And Or Probability

A die is rolled. What is the probability of rolling a 1 or a number greater than 3? (Reduce the fraction!)

• 2/3

• 1/2

• 5/6

• 1

• None of the above

You pick a marble from this bag.

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



• 3/5

• 9/100

• 1/10

• 2/5

What is the probability of spinning green or blue?



• 0

• 5/12

• 1/2

• 3/4

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6

• 1/2

• 1/3

• 1/6

A set of all possible outcomes is known as -

• a list

• a complement

• a sample space

• an event

Experimental Probability is:

• What Will happen

• What actually happens

• What should happen

• What I think Happens

What is the probability for the students highlighted in blue?

P(Blue)=

Mathematical Equivalence

ON

What is the probability for the students highlighted in blue?

Mathematical Equivalence

ON

P(B or 1)=

Mathematical Equivalence

ON

P(B or 2)=

Mathematical Equivalence

ON