In: Statistics and Probability
An undergraduate business student has purchased a laptop computer for use during exams. This laptop is perfectly reliable except for two parts: its microchip, which has a failure rate of one in every twenty hours of operation; and its battery, which has a failure rate of one in every ten hours of operation. Also, on average the battery will wear out in five hours, with a standard deviation of 30 minutes. Assuming that a new battery has just been installed, what is the probability that the battery will perform reliably during a one-hour exam?
answer:
given data,
to find the probability of the battery will perform to reliably during the one-hour of the exam is ....?
the
probability is shown in the below step by step,
here we are
know as the values is already
the battery
perform probability in 1 hour is
its the
probability is write as the
so finally the probability is 0.0833
0.0833 |