Q 2/ Statistics and Probability, I checked it again there's no more Information that I got more than that

A box of 50 remote control devices contains 6 that have a defective power button, If devices are randomly sampled from the box and inspected one at a time, determine the following probabilities a. The probability that the first control device is defective. b. The probability that the first control device is good and the second control device is defective c. The probability that the first three sampled devices are all good a. The probability that the first control device is defective is (Round to four decimal places as needed.)