The Sky Ranch is a supplier of aircraft parts. Included in stock are 12 altimeters that are correctly calibrated and two that are not. Three altimeters are randomly selected without replacement. Let the random variable z represent the number that are not correctly calibrated. Complete the probability distribution table. (Report probabilities accurate to 4 decimal places.) H P(x) 0 1 2 3 Find the mean of this probability distribution. (Appropriate rounding rules apply.) mean =

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