Pete sells bottled water at the gym. he starts with 42 bottles and sells 5/6 of them on monday morning. how many bottles has he sold? a) 28 b) 30 c) 35 d) 40

The life (in hours) of a magnetic resonance imagining machine (mri) is modeled by a weibull distribution with parameters β = 2 and δ = 370 hours. (a) determine the mean life of the mri. (round your answer to 2 decimal ) determine the variance of the life of the mri. (round your answer to 1 decimal ) what is the probability that the mri fails before 250 hours? (round your answer to 4 decimal places.)