Some electronic devices are better used than new. The failure rate is higher whe

Question

Some electronic devices are better used than new. The failure rate is higher when they are new than when they are six months old. For example, three fourths of the personal music players sold by a particular brand have a flaw. If the player has the flaw, it dies in the first six months. If it does not have this flaw, then only 10% fail in the first six months. Yours dies after you had it for three months. What are the chances that it has this flaw?

The probability that it has the flaw is ____ .

(Round to three decimal places as needed.)

Explanation / Answer

The probability that it has the flaw is

0.10 / 5 = 0.02

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