# Probability question?

Three defective electric toothbrushes were accidentally shipped to a drugstore by Cleanbrush Products along with 13 non-defective ones.
a.
What is the probability the first two toothbrushes sold will be defective? (Round the final answer to 5 decimal places.)
b.
What is the probability the first two electric...
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Three defective electric toothbrushes were accidentally shipped to a drugstore by Cleanbrush Products along with 13 non-defective ones.

a.

What is the probability the first two toothbrushes sold will be defective? (Round the final answer to 5 decimal places.)

b.

What is the probability the first two electric toothbrushes sold will not be defective? (Round the final answer to 4 decimal places.)

a.

What is the probability the first two toothbrushes sold will be defective? (Round the final answer to 5 decimal places.)

b.

What is the probability the first two electric toothbrushes sold will not be defective? (Round the final answer to 4 decimal places.)

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