A box contains a large number of transistors, 30% of them are of type A and 70% are of type B. If a random sample of 4 is taken then determine the probability that it contains a. b. C. 4 type A transistors 4 type B transistors 2 type A resistors and 2 type B transistors
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- In a survey of U.S. adults with a sample size of 2082, 370 said Franklin Roosevelt was the best president since World War II. Two U.S. adults are selected at random from this sample without replacement. Complete parts (a) through (d). (a) Find the probability that both adults say Franklin Roosevelt was the best president since World War II. The probability that both adults say Franklin Roosevelt was the best president since World War II is O. (Round to three decimal places as needed.) (b) Find the probability that neither adult says Franklin Roosevelt was the best president since World War II. The probability that neither adult says Franklin Roosevelt was the best president since World War II is (Round to three decimal places as needed.) (c) Find the probability that at least one of the two adults says Franklin Roosevelt was the best president since World War II. The probability that at least one of the two adults says Franklin Roosevelt was the best president since World War II is.…What is the probability of finding an H2O based compound with a blue label in a storage facility of 1,000 vials. We know there are 22 vials of H2O based compound in the facility, and that 800 of the total number of vials in the facility have blue labels.ag I contains 2 White chips and 1 red chip and Bag II contains 2 red chips and one white chip. A chip is selected at random from g I and transferred to Bag II. Then a chip is selected at random from Bag II. If the selected chip is red, what is the probability that e transferred chip was white? 317 B 2/3 O 1/3 4/7
- A manufacturer of liquid crystal displays (LCDs) is studying their production lines. The probability of sampling a defective LCD is 0.1. A sample of 5 LCDs is taken. You may assume that an LCD being defective is independent of any of the others being defective. What is the probability that more than 3 LCDs are NOT defective? 01) 0 2) 0.00001 3) 0.06561 4) 0.32805 5) 0.59049 6) 0.6561 7) 0.91854 8) 0.85366 4 9) 1For curing a certain engineering material, there are 7 standard treatments A, B, C, D, E, F & G. An engineer has the resources for conducting a comparative study of 7 of these treatments. If he chooses the 5 treatments for study at random, what is the probability that treatments A and C will be chosen?The probability that a machine develops a fault within the first 3 years of use is 0.003. If 40 machines are selected at random, the probability that 38 or more will not develop any faults within the first 3 years of use is ....
- A company manufactures transistors in four factories producing 10%, 30%, 40% and 20% of the parts respectively.Due to their respective age and level of standards, factories produce defective parts at frequenciesdifferent, i.e. 0.15, 0.20, 0.08 and 0.10.If we take a part at random from among those that are defective, what is the probability that it comes from factory 3?on average 20%of the motors are produced by a manufacturing plant are found to bass the standard test .what the probability that out of 22motors at least three will not pass the standard test1. Assume your computer network may have been hacked and computers may have 2 different types of viruses (virus type-A and virus type-B). The current situation shows that 15% of computers end up with type-A virus, 10% end up with type-B virus, and 10% of the computers infected with type-A or type-B virus have both viruses. 1.a) Compute the probability that a computer is infected with both viruses 1.b) Compute the probability that a computer has type-B virus given that it has type-A virus
- Suppose that 65% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 3 places) or fractionA manufacturer wishes to estimate the accuracy of its final visual inspection process. A random sample of 180 devices is selected from production. An item is defective or “bad” if it contains at least one visually noticeable cosmetic defect. The process improvement team agrees that the sample contains 27 bad items and 153 good items. The team gives the items to a “certified” operator for inspection. The operator rejects 10 good pieces and accepts 11 bad pieces and classifies the remainder correctly. What is the probability that the inspector will reject an item? P(inspector will reject an item) = ________%. Enter value using one decimal place.