Weekend HW!

1.) Weekend HW: Please complete the "More Probability Practice" problems (about voter turnout) and "Independent and Disjoint Events" multiple choice that were provided in class. Lost yours? Here you go!

• Note: these questions talk about voting "last week" (because this is old), but should say "voted in the 2016 election." Don't get confused by the "last week" part. 
• Weekend HW! (Click Me)

2.) ALWAYS CHECK YOUR ANSWERS (when possible):

• "More Probability Practice" Key:
• a.) 0.0915
• b.) 0.041
• c.) 0.0501
• d.) 0.959
• e.) 0.9085
• Ind/Disjoint MC:
• We'll check these in class on Monday.

3.) Last chance for Bonus Stamps (Due Monday): + 4 stamps

• Answer the question below (#7 from our slides about roulette) "the long way."
• You must show ALL work
• Your answer should match our answer from Thursday's class when we did this "the short way" 
• Question:
• Suppose we play roulette 4 times...
• What is the probability that the 4 spins are not all red?
• This means we could have 0 red, 1 red, 2 red, or 3 red (just not all 4 red)
• Your challenge:
• Calculate the probability of 0 red, exactly 1 red, exactly 2 red, 3 red
• Add these for the probability that our 4 spins are "not all red"
• Answer should = 0.94966
• 

4.) Vocab! Next week (Weds?) we'll have a chapter 14 vocab quiz. For this chapter you are responsible for much of the vocabulary--here's what you need to know....

• Probability: long run relative frequency of an event, chance some event happens, always between 0 and 1
• Law of Large Numbers
• Law of Averages
• Complement (of an event)
• Disjoint/Mutually Exclusive
• Independent (Events)
• Sample Space: the set of all possible outcomes for an event
• Equally Likely Outcomes
• Union: or
• Intersection: and