MATHS - Statistics - Probability Part 2

The video tutorial covers the basics of probability, explaining it as a ratio of successful outcomes to total outcomes. It demonstrates how probability can be expressed as fractions, decimals, or percentages. Through examples, it illustrates calculating probabilities, including complementary events. The tutorial also distinguishes between independent and dependent events, using experiments with colored balls. It concludes with calculating probabilities of multiple independent events, such as flipping coins or drawing cards, emphasizing the use of complementary probabilities.

How can probability be expressed?

• Only as a decimal

• Only as a fraction

• As a fraction, decimal, or percentage

• Only as a percentage

What is the probability of not drawing a yellow ball from a box with 3 yellow and 5 blue balls?

• 3/8

• 5/8

• 7/8

• 1/8

If two events are independent, how do you find the probability of both occurring?

• Multiply their probabilities

• Add their probabilities

• Subtract their probabilities

• Divide their probabilities

In a scenario where you draw a card and replace it, what is the probability of not drawing an ace in three attempts if the probability of not drawing an ace in one attempt is 8/9?

• 8/27

• 1/729

• 512/729

• 217/729

What is the probability of getting at least one ace in three draws from a 36-card deck if the card is replaced each time?

• 512/729

• 217/729

• 1/729

• 8/27