When a 4-cylinder car is brought in for a tune up the number of cylinders that have low compression is between 0 and 4. The table below shows the probabilities for each
X 0 1 2 3 4
f(x) 0.80 0.10 0.05 0.03 0.02
a) For a random car, what is the probability it will have any cylinders with low compression?
b) For a random car, how many cylinders do you expect to have a problem?
c) What is the standard deviation for cylinders with a problem?