The Sky Ranch is a supplier of aircraft parts. Included in stock are 9 altimeters that are correctly calibrated and 2 that are not. Three altimeters are randomly selected without replacement. Let the random variable
x
represent the number that are not correctly calibrated.

Complete the probability distribution table. (Report probabilities accurate to 4 decimal places.)
x
P
(
x
)
0
1
2
3

Find the mean of this probability distribution. Round to one decimal place.
mean =