Probability - quiz (CFA)

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

The theoretical probability of rolling an even number on a dice.

• 3/6
• 1/2
• 1/6
• 5/6

How many senior boys play football or wrestle?

• 9
• 21
• 30
• 39

What is Theoretical Probability?

• The ratio of favorable outcomes to the total number of possible outcomes
• The ratio of favorable outcomes to the total number of trials in an experiment
• In probability, a controlled, repeated process (such as repeatedly tossing a coin).
• A single possible result.

What is the probability of spinning an even number?

• 30%

• 33%

• 50%

• 67%

You roll two die.

What is the probability you will roll a 4, then roll a number less than 3?

• 1/36

• 1/18

• 1/9

• 1/6

A coin is tossed and a number cube is rolled. Find the probability, P(heads and 7).

• 1/14

• 1/2

• 0

• 1/7

Victor picks a card at random. Without putting the first card back, he picks a second card at random.

• Dependent
• Independent