A Factory Making Two Types of Computer Chip Mixes Up

question 5

Multiple Choice

A factory making two types of computer chip mixes up two small batches of new chips. A box contains 50 chips, 30 are type A and 20 type B. If you take two chips out at random, what are the chances they are both type B (3 decimal places) ?

• A) 0.135
• B) 0.145
• C) 0.155
• D) 0.165

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Definitions:

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