Lectures – 2.1 Probabilities Events and Equally Likely Outcomes

Quiz 2.1 #1

Consider the experiment of flipping a coin twice.
How many elements are in the event of “flipping at least one head?”
(Hint: draw a tree diagram [1.4] and determine the sample space first, then determine which elements “qualify”)

  • A. 2
  • B. 3
  • C. 4

Quiz 2.1 #2

Consider the experiment of rolling two dice.
What is the number of elements in the event “Difference between rolls is at least 3?”

  • A. 12
  • B. 14
  • C. 16

Quiz 2.1 #3

Let’s consider an experiment of drawing a card from a deck of cards.
What’s the probability of drawing an Ace?

  • A. 1/12
  • B. 1/13
  • C. 1/52

Deck of Cards