Reply the answers in decimals pleasee

1. Write True or False, as appropriate: P(Ac) = P(A) - 1. (T or F) b) Applying a survey to obtain opinions is a random experiment. (T or F) c) Counting defective objects produced daily by a machine is a random experiment. (T or F) d) Dropping an object from a certain height and calculating the time it takes for it to hit the ground is a random experiment. (T or F) 2. In a car manufacturing company it has been observed that 5% have some defect. Find the probability that in a random sample of 10 cars, 4 defectives are found. 3. The time required for a worker to process a certain part is a random variable with the following probability distribution: X 1 2 3 4 5 6 P(X=x) 0.1 0.15 0.2 k 0.2 0.15 For the table to represent the probability function, the value of k must be plus, the expected processing time is