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Graphing Calculator Example

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If 25% of eleven-year-old children have no decayed, missing, or filled (DMF) teeth, find the probability that in a sample of 20 children there will be:

a. Exactly 3 of them with no DMF teeth.
b. Less than 3 with no DMF teeth.
c. 3 or more with no DMF teeth.
 

 

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