Question1. When you toss a coin 5 times, what is the probability of?
- throwing 5 heads
- throwing 4 tails
- throwing 3 heads and 2 tails
Question2. Make a tree diagram to verify your answers for Q1.
Question3. When you throw a dice 4 times, what is the probability of?
- throwing 4 sixes
- throwing 3 fives and a 2
- scoring 16 in total
Question4. a) Provide two examples of independent events.
Elucidate why they are independent.
b) A card is to be selected from a pack of cards and a die is to be thrown. Find out the probability that the result will be:
- A spade and an even number on the die.
- A red card and a number less than 5 on the die
Question5. a) Give two examples of communally exclusive events. Elucidate why they are communally exclusive.
b) A coin is tossed and a die is thrown. Find out the probability that the result will be a head or a number greater than 4, or both.
Question6. A box contains 3 Red balls, 6 Green Balls and 5 Blue balls. Three balls were drawn at random. Use the Combinations concept, work out the probability for the subsequent cases:
1 is red and the other 2 are blue.
2 are green balls and the other is red.
None are green balls.