Harold rented a steam cleaner to clean his carpets. there was a charge for cleaning solution and a daily rental charge for three days. the total bill was $83.50. • the cleaning solution cost $25.
• the cost to rent the cleaner was the same for each day.
how much, in dollars, did harold pay for each day of the rental?

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.)