Probability of Coin Flips

The video tutorial explains how to calculate the probability of getting at least two tails when flipping three fair coins. It uses a tree diagram to illustrate all possible outcomes and identifies which outcomes meet the condition of having at least two tails. The tutorial concludes by calculating the probability as 1/2, based on the number of favorable outcomes over the total possible outcomes.

What is the main question being addressed in this video?

• How to flip a coin

• How to draw a tree diagram

• Probability of getting at least two tails when flipping three coins

• The history of coin flipping

What does the tree diagram help us understand?

• The number of coins used

• The possible outcomes of flipping three coins

• The weight of the coins

• The speed of flipping the coins

If the first coin is heads, what are the possible outcomes for the second coin?

• Only heads

• Only tails

• Heads or tails

• Neither heads nor tails

Which of the following outcomes meets the constraint of at least two tails?

• Heads, heads, tails

• Heads, heads, heads

• Heads, tails, heads

• Tails, tails, heads

How many outcomes have exactly two tails?

• One

• Two

• Four

• Three

What is the total number of possible outcomes when flipping three coins?

• Eight

• Four

• Ten

• Six

How many outcomes meet the constraint of at least two tails?

• One

• Three

• Four

• Two

What is the probability of getting at least two tails?

• 1/4

• 1/3

• 1/2

• 3/4

Which of the following is NOT a favorable outcome for getting at least two tails?

• Tails, tails, tails

• Heads, heads, tails

• Tails, tails, heads

• Heads, tails, tails

What fraction represents the probability of getting at least two tails?

• 1/4

• 1/2

• 3/4

• 2/3