An environmental testing station tests 98 parts in sequence….
An environmental testing station tests 98 parts in sequence. The probability that a part passes the test is 0.77. The parts are independent. This copywritten question is part of a quiz or exam at Arizona State University. It may not be posted or reproduced in any way without the permission of Dr. L. Chattin and Arizona State. If you wanted to determine the probability that fewer than 85 of these parts pass, what is the best definition of the random variable you’d use? Select the answer that best completes the sentence. “X is _________________________________________. ”