Illustrate probability first electric toothbrush sold

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Reference no: EM1371592

Q Three defective electric toothbrushes were accidentally shipped to a drugstore by Clean brush Products along with 17 non defective ones.

a. Illustrate what is probability first two electric toothbrushes sold will be returned to drugstore because y are defective?

Explain how all work, formula and answer

b.) Illustrate what is probability first two electric toothbrushes sold will not be defective?

Reference no: EM1371592

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