|
 Random experiments,
like rolling dice, tossing a coin, spinning a spinner, and selecting an
item from a set of items without looking, mean you do not know
beforehand what the outcome will be.
|
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Experiment:
tossing a coin |
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Possible Outcomes:
heads, tails |
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Events:
tossing heads 1/2
or 1 out of 2 |
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Probability
of an event |
= |
number of favorable outcomes |
|
number of possible outcomes |
The experiment of spinning the given
spinner involves finding the probability of a spinner landing on
different numbers. What is the probability of the spinner landing on
number 2?
 |
Probability of landing on the number 2 |
1/4
Read: 1 out of 4 |
|
Probability
of spinning the number 2 |
P (2)
= 1
4 |
 one
2 |
 four
possible outcomes |
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|
Remember:
Probability
is the chance that
a given event will occur. |
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Oswego City School District
Elementary Test Prep
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|
