What is the probability that a cd player will break down

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Reference no: EM13202251

Sunshine Stereo sells cd players. The cd players life is normally distributed with a mean of 2.3 years and a standard deviation of 0.4 years. What is the probability that a cd player will break down during the guarantee period of 2 years? (Hint: the statement that the cd player breaks during the 2-year guarantee period means the life is less than 2 years, or x<2. Now find the z score).

Reference no: EM13202251

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