Simple Probability

What is the probability of spinning an even number? 

• 16 2/3%
• 33 1/3%
• 50%
• 75%

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

Theoretically, what is the probability of rolling a sum of one with a pair of dice?

• 0
• 1/6
• 1/12
• 1/36

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without looking, what is the probability he will NOT pull out a blue marker?

• 5/10
• 1/3
• 4/15
• 2/3

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Probability is ...

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

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CCSS.7.SP.C.5

What is the probability of spinning the spinner and having it land on RED?

• ⅓
• ½
• ⅔
• ⅚

Tags

CCSS.7.SP.C.5

The sample space for tossing a coin would be

• S = (H,T)

• S = {H,T}

• {H,T}

• Heads , Tails

Experimental probability is

• What happens when an event is tried out by an experimenter

• What we expect to happen when an event is carried out

• An experiment

• All of the outcomes of an event

Theoretical probability

• a theory on what will happen

• cannot be worked out

• relies on information to predict what the likelihood of an event occurring is

• when we conduct trials to get an answer

An outcome is

• not expected

• displays information about an experiment

• probability

• all the possible results of an event

Rolling a 15 on a number cube is 

• Impossible
• Certain
• Unlikely
• Equally Likely

Tags

CCSS.7.SP.C.5