It is known that the standard deviation of the lives of these tubes is 150 150 hours. The company’s research department takes a sample of 100 100 such tubes and finds that the mean life of these tubes is 2250 2250 hours. What is the probability that this sample mean is within 25 25 hours of the mean life of all tubes produced by this company?

wheres the chart? so i can answer.

answer; ///decision making under risk;

anyone below or above ambitious can tell you. so crowns mean brainliest. getting brainliest means your answer needs a good explanation and the person asking the question can understand your answer easily. so say there's a multiple choice question. you don't just want to say your answer is a, hope it . provide evidence and reasoning so that they know that that is the correct answer. a good explanation should have evidence, good reasoning, and your opinion on why you picked that. you don't want to look up their question on the internet and see if you can answer it. pick questions that you 100% know the answer to, so than that way you can provide a better explanation.

best of luck,

the divergent