Janie flips a coin 70 times and records if it comes up heads. if getting heads is a success, what is the probability of a failure?
a. selecting phones randomly until a non-defective phone is chosenb. selecting phones randomly until 200 defective phones are chosenc. selecting 200 phones randomly and recording whether each phone is defectived. selecting a group of phones randomly and recording the number of defective phones in the group

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?