Describing probability + Using numbers to describe probability

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• Middelbare school
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• Leerjaar 2

Describing probability 

Schedule: 

• learning goals
• Describing probability
• Worksheet
• Using numbers to describe probability 
• Work on your level 

Learning goals 

At the end of this lesson I can:

•  Describe probability with words 
• Describe probability using numbers 

Probability

Describing probability 

"It will probably rain today"

"I am almost certain that I got a good mark for the assessment"

"It is unlikely that our team will win today"

"It is likely that it will be hot tomorrow"

Describing probability 

"It will probably rain today"

"I am almost certain that I got a good mark for the assessment"

"It is unlikely that our team will win today"

"It is likely that it will be hot tomorrow"

Describing probability 

Key words describing probability: 

Describing probability 

Key words describing probability: 

Finish question 1-3 from the worksheet 

Continue with the other questions if you are done! 

ManageBac > Files > Unit 6 Probability > Describing probability worksheet 

Using numbers to describe probabilities 

Outcome: The result we obtain in 1 trial of an experiment 

Event: Obtain an outcome with a particular property 

Using numbers to describe probabilities 

Impossible event             

Event E = "rolling a 7"

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%               

Event E = "rolling a 7"

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%                P(E) = 0%= 0

Event E = "rolling a 7"

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%                P(E) = 0%= 0

Event E = "rolling a 7"

Certain event            

Event F = "picking a green marble out of a bag with only green marbles 

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%                P(E) = 0%= 0

Event E = "rolling a 7"

Certain event            probability is 1 or 100%                

Event F = "picking a green marble out of a bag with only green marbles 

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%                P(E) = 0%= 0

Event E = "rolling a 7"

Certain event            probability is 1 or 100%                 P(F) = 100%= 1

Event F = "picking a green marble out of a bag with only green marbles 

Using numbers to describe probabilities 

Impossible event             probability is 0 or 0%                P(E) = 0%= 0

Event E = "rolling a 7"

Certain event            probability is 1 or 100%                 P(F) = 100%= 1

Event F = "picking a green marble out of a bag with only green marbles 

You use decimals (between 0 and 1) or percentages to describe probability 

Extra practice + help

p. 329 : 17A              3, 4, 5

p. 331: 17B                1, 2, 3, 7, 

                                  

Extra practice

p. 329: 17A             4,5,6

p. 331: 17B             3, 6, 7

ManageBac > Files > Unit 6: Probability > Describing probability worksheet