The probability P, as a percent, that a certain computer keyboard in a public library will last more than t years can be approximated by  P = 100e−1.2t. (a) What is the probability that the keyboard will last more than 2 years? Round to the nearest tenth.  % (b) After how many years will the probability of keyboard failure be 79%? Round to the nearest tenth.  yr

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.