MATH PROBABILITY GRADE 5 MR G 2057215 mles
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| sample space | all possible outcomes or results
ex. tossing a coin: P(h) = 50% P(t) = 50%
sample space = {head, tail}
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| outcome | the result of a single trial of an experiment
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| event | a group of outcomes -
- roll an even number on a die (outcomes 2,4,6)
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| probability | a measurement of how likely an event is-
the number of ways it can happen/total outcomes
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| complement | all outcomes in an event that did not occur
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| independent event | an event not affected by a previous event- flipping a coin
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| dependent events conditional probability | an event affected by a previous event - pulling different color socks from a drawer, the probability changes unless you return the one you pulled out
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| mutually exclusive | events that can not happen together - a coin flip can not result in heads and tails
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| experiment | has an unknown outcome
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| tree diagram | looks like a factor tree, used to calculate the probability of both independent and dependent events
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| tree diagram continued! | tree diagrams for dependent events are like a dichotomous key for classification
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| ratio | shows relative size of two numbers
- can be part to whole (like a fraction) or part to part
- can be written in various forms 1:3. 1/3, 1 to 3
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| proportion | a statement that says two ratios (or fractions) are equal
- 2:3 = 8:12
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| Watch this card for a possible bonus point! | Watch this card for a possible bonus point!
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| research the answer | Combination
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| research the answer | Permutation
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| random | lack of pattern or predictability
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| prediction / forecast | expected outcome
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| odds | the ratio between the number of favorable outcomes to the number of unfavorable outcomes
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| likely, certain, unlikely, impossible | casual language indicating odds
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| sample (random) | A selection taken from a larger group so that you can examine it to find out something about the larger group- all items in the group have an equal chance of being selected
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| trend | a general tendency if there is a pattern
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| reliable | consistent results
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| "Nothing is certain except death and taxes." | Mark Twain
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Created by:
Mr Giss
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