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DHS 18.1 - Option 27. Decisions Ryabushko AP
Uploaded: 09.11.2016
Content: 27v-IDZ18.1.doc 86,5 kB
Product description
Solve the following problems (1 - 6)
1.27. The station has 6 sidings. In how many ways you can arrange them 4 trains?
2.27. In the workshop for repair received 20 televisions. It is known that 7 of them need to be tuned. Master takes any 5 TVs. What is the probability that two of them need to be configured?
3.27. Three machine parts are made. The probability that the part made the first automatic - the highest quality, equal to 0.9, for the second - 0.7, for the third - 0.6. Randomly take one piece with each machine. Find the probability that the parts taken from: a) all of the highest quality; b) two of the highest quality; c) at least one of the highest quality.
4.27. To participate in student sports competitions allocated from the first group of 5 students of the second and third - 6 and 10 students. The probability of the master of sports rules for students of the first group is equal to 0.3, the second - 0.4, the third - 0.2. Find the probability that; a) a randomly selected student will fulfill the norm of the master of sports; b) the student who made the norm of the master of sports, studying in the second group.
5.27. Probability of hitting a target with one shot is 0.6. Produced by 5 shots. Find the probability that there will be a: a) Four defeats the purpose; b) at least four lesions; c) three defeats.
6.27. The average number of aircraft arriving at the airport 1 min is 2. Find the probability that in 6 minutes to arrive 5 aircraft if the aircraft arriving stream simplest.
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
For the convenience of viewing IDZ solutions on smartphones, an additional file in PDF format is sent
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