6/2/15 – Warm Up When rolling 2 dice… This is Sheet #8 When rolling 2 dice… Which sum(s) do you expect to roll the most? Which sum(s) should you roll the least? What is the probability of getting a sum of 4? HW check today!

Pre-Algebra Mrs. Spanier Compound Probability Pre-Algebra Mrs. Spanier

Find the probability of spinning an odd number and getting tails. Example 1 Find the probability of spinning an odd number and getting tails. P(odd) = 4/8 P(T) = ½

Problem 2 There are 6 red, 3 green, 5 white, 7 yellow, and 2 blue suckers in a bag. Mrs. Spanier lets you pick 2. Find P(both green)

Find P(red, then yellow) Problem 2 There are 6 red, 3 green, 5 white, 7 yellow, and 2 blue suckers in a bag. Mrs. Spanier lets you pick 2. Find P(red, then yellow)

Problem 2 There are 6 red, 3 green, 5 white, 7 yellow, and 2 blue suckers in a bag. Mrs. Spanier lets you pick 1. Find P(red OR yellow) Add to notes on GO – if OR then ADD, if AND then MULTIPLY.

Write in the “notes” section on your GO… When do you ADD and when do you MULTIPLY probabilities?

Problem 3 A friend asks you to choose 4 cards from a standard deck. What is the probability you will pick all 4 aces?

Problem 3 A friend asks you to choose 4 cards from a standard deck. What is the probability you will pick all 4 aces?

The End