Mathematics, 23.10.2021 02:20 memeitupkevin
A survey indicates that people use their cellular phones an average of 1.5 years before buying a new one. The standard deviation is 0.25 year. A cellular phone user is selected at random. Find the probability that the user will use their current phone for less than 1 year before buying a new one. Assume that the variable x is normally distributed. (Round your answer to 4 decimal places)
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A survey indicates that people use their cellular phones an average of 1.5 years before buying a new...
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