Hiya. Pls answer this question from Hegarty maths real soon. A card is drawn at random from a standard pack of playing cards.
Then a fair coin is flipped.
What is the probability of selecting a club and the coin landing on tails?

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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.)