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PS.10

Last updated over 4 years ago

4 questions

1

Question 1

1.

James goes to an arcade. He has one go on the Teddy Grabber. He has one go on the Penny Drop. The probability that he wins on the Teddy Grabber is 0.2. The probability that he wins on the Penny Drop is 0.3. Complete the tree diagram

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Question 2

2.

Raheem picks 22 red and blue balls at random. The probability of picking each ball is shown in the tree diagram. Calculate the probability that he selects the same colored ball each time, given that after each time a ball is selected, it is replaced.

Question 3

3.

Over time, Ronald has shown that in 4 of 10 attempts he makes a bullseye with a bow and arrow. Create a probability distribution table which shows the possible outcomes and the associated probabilities when Ronald shoots three arrows.

Question 4

4.

Over time, Ronald has shown that in 2 of 5 attempts he makes a bullseye with a bow and arrow. The probability distribution table shows the possible outcomes and the associated probabilities when Ronald shoots three arrows.

What's the probability that he hits the bullseye 2 or more times?