Probability

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

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Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

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The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

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A likely chance event is closer to what number?

• 0
• 1
• .5
• 100

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Six of the 6 numbers are greater than 0. Spinning a number that is greater than 0 is...

• impossible

• unlikely

• as likely as not

• likely

• certain

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What is the probability of rolling 15 with a pair of dice?

• impossible
• unlikely
• equally likely
• likely

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What is the probability of spinning the spinner and landing on the 7?

• impossible
• equally likely 
• unlikely 
• very likely 

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A probability near 1 is _______.

• never going to happen 
• very likely to happen
• probably never going to happen
•  equally likely to happen

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Probability can be expressed as a number between_____ and _____.

• 0 and 100
• 0 and 10
• 0 and 1
• -1 and 1

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The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%
• 70%
• 100%
• 0%

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