Mathematics, 25.08.2019 20:30 jade5801

Acompact disc is designed to last an average of 4 years with a standard deviation of 0.9 years. what is the probability that a cd will last less than 3 years?
1.11%
13.35%
86.65%
100%

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Acompact disc is designed to last an average of 4 years with a standard deviation of 0.9 years. what...