- The marbles are being drawn without replacement!
- Check all your answers on the slide below:
2.) Vocab Quiz Tomorrow--STUDY! (10 min)!
- For this chapter you are responsible for much of the vocabulary; use the glossary in your book (ch. 14) and the images below to help--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: the long run relative frequency (of an event) gets closer to the true (theoretical) probability as the number of trials increases
- Law of Averages: this is the idea that an outcome will eventually be "due." This is not true for independent events. (For example, if the last 100 spins of a roulette wheel landed on black, this does not mean the next spin is "due" to land on red." Spins are independent, so the probability the next spin lands on red is still 18/38!)
- Complement (of an event): see image below
- Disjoint/Mutually Exclusive: in notes
- Independent (Events): in notes
- Sample Space: see image below
- Equally Likely Outcomes: events/outcomes that have the same probability to occur
- Union: or, also know the symbol (see below
- Intersection: and, also know the symbol (see below)
- There are also 3 questions where you have to determine if two events are independent, disjoint, neither, or both (but never both), like our weekend hw. (Key below).
- Check all this out for your vocab quiz!
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