Probability and Marbles

The video tutorial explains how to calculate probabilities in a scenario involving a jar of marbles. It covers the probability of drawing a red marble, an odd marble, a marble that is either red or odd, and a marble that is both blue and even. The tutorial emphasizes the importance of understanding sample space and simplifying fractions to express probabilities as fractions, decimals, and percentages.

How many total marbles are there in the jar?

• 16

• 18

• 10

• 12

What is the probability of drawing a red marble from the jar?

• 1/4

• 1/2

• 1/8

• 1/16

Express the probability of drawing a red marble as a percentage.

• 10%

• 20%

• 25%

• 30%

How many odd-numbered marbles are there in total?

• 6

• 12

• 10

• 8

What is the probability of drawing an odd-numbered marble?

• 1/2

• 1/8

• 1/4

• 3/4

What is the decimal representation of the probability of drawing an odd marble?

• 1.0

• 0.5

• 0.25

• 0.75

What is the probability of drawing a marble that is either red or odd?

• 7/8

• 1/2

• 3/8

• 5/8

How many marbles are both red and odd?

• 1

• 2

• 4

• 3

How many blue marbles are even-numbered?

• 4

• 5

• 6

• 7

What is the probability of drawing a blue and even marble?

• 5/8

• 1/2

• 3/8

• 1/4