GCSE Secondary Maths Age 13-17 - Probability & Statistics: Probability - Advanced - Explained

The video tutorial explains a probability problem involving 8 cards, where the goal is to determine the probability that the sum of three randomly chosen cards is odd. The instructor discusses the distribution of odd and even cards, calculates the probability of different combinations, and simplifies the calculations. The tutorial emphasizes understanding the problem and using a systematic approach to solve it.

How many cards does Paul have in total?

• 10

• 12

• 8

• 6

What is the probability of selecting an odd card from the deck initially?

• 2/8

• 6/8

• 3/8

• 1/8

Which combination of cards will result in an odd sum?

• Odd, Odd, Even

• Even, Even, Even

• Even, Odd, Even

• Odd, Odd, Odd

What is the probability of drawing three odd cards in a row?

• 7/14

• 5/14

• 1/14

• 3/14

What is the probability of drawing two even cards and one odd card?

• 4/28

• 2/28

• 1/28

• 3/28

What is the final probability of the sum being odd?

• 18/28

• 13/28

• 10/28

• 15/28

How many marks were allocated for understanding the question and planning the solution?

• 2

• 3

• 1

• 4