Exploring Basic Probability Concepts

What is the basic definition of probability?

• Product of possibilities

• Sum of all outcomes

• Total over possibilities

• Possibilities over total

In the example, what colors are the marbles?

• Blue, Orange, Purple

• Red, White, Blue

• Green, Yellow, Blue

• Red, Black, White

How many total marbles are there in the bag?

• 15

• 25

• 20

• 10

What is the probability of pulling a red marble from the bag?

• 3/15

• 6/15

• 5/15

• 4/15

Can the fraction 4/15 be reduced further?

• Yes, to 2/5

• No

• Yes, to 2/7

• Yes, to 1/4

What is the probability of not drawing a blue marble?

• 2/5

• 3/5

• 4/5

• 1/5

How many marbles are not blue?

• 5

• 10

• 6

• 9

What is the process to simplify the fraction 9/15?

• Add 5

• Multiply by 2

• Divide by 5

• Divide by 3

What is the total number of marbles used in the example?

• 15

• 18

• 12

• 20