Consider the following circuits of 4 identical relays. The probability that any relay works is 0.8 and the failures of the relays are independent. What is the probability that, when current is applied, it flows from point 1 to 2?
Read DetailsA coffee shop has discovered that 2% of the coffee mugs they sell are chipped. Assuming that the condition of each mug is independent of the others, how many coffee mugs can the shop order before the probability of receiving at least one chipped mug reaches 75%?
Read Details50 high school seniors were asked about their plans following graduation. 18 planned to attend an in state college. 12 planned to attend an out of state college. 8 did not plan to attend college and 10 were undecided. What percent of this group of seniors is not planning to attend an in state college?
Read DetailsMrs. Gonzalez is a 72y/o woman with a 10 year history of non-insulin dependent diabetes mellitus. She has a full-thickness ulcer on her lateral right ankle caused by arterial insufficiency that has been present for the past 6 months. She has 4/10 pain on VAS upon palpation of the surrounding tissues of the wound. You would like to increase circulation to the area at this visit and to improve skeletal muscle blood flow. Which of the following physical agents would be most appropriate to accomplish this goal at this time?
Read DetailsA 14-month-old child presents for his first well-child check. He was recently adopted from a Romanian orphanage. His parents are concerned that he appears small compared to other children his age. His weight, height, and head circumference are all < fifth percentile. He eats very well but has not gained weight since the adoption last month. He urinates several times each day and has four loose, greasy stools daily. Review of systems is also significant for a mild chronic cough. Blood and stool studies are sent. A chest film reveals mild bilateral bronchiectasis. What is the most likely cause of the child’s poor weight gain?
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