The time between arrivals at an ATM machine follows an exponential distribution with ? = 10
minutes. Find the probability that less than 25 minutes will pass between arrivals.
A) 0.329680 B) 0.917915 C) 0.082085 D) 0.670320
B
Business
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Punctuate the sentence correctly. The US House of Representatives was created in 1789
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Which of the following statements is not true?
a. Extraneous variables refer to outside variables that are not part of the experiment. b. Persons or objects receiving a treatment are said to be in an experimental group. c. Persons or objects not exposed to a treatment are said to be in a control group. d. Internal validity refers to whether the treatment really made the difference in the measurements obtained. e. All of these are true.
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