15. In the "secret" lock on the common axis are four disks, each of which is divided into fivesectors, on which the numbers are written. The lock opens only if the disks are mounted sothat the numbers on them make up a certain four-digit number. Find the likelihood thatwhen installing disks randomly, the lock will open.

The probability of an event is the ratio of the number of cases favorable to that event to the…

Answered: 15. In the "secret" lock on the common…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When testing for current in a cable with twelve color-coded wires, the author used a meter to test two wires at a time. How many different tests are required for every possible pairing of two wires? The number of tests required is
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Will play a two-player game, for which we say the numbers from 1 up to 25 in increasing order without skipping any number. One player can say one, two, three or four numbers per turn before the next player's turn which can do the same thing. The game continues and the one who say the number "25" loses the game. Is it better to be the first player or the second player? What is the winning strategy if there's any
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At a carnival, an individual can win a prize by choosing a rubber duck from a pond with "Win" written on the underside of the duck. There are a total of eight ducks with "Win" written on the underside of the duck, and there are 17 ducks with "Lose" written on the underside of the duck. After each pick, if a prize is won, the duck is replaced in the pond. If a prize is not won, then the duck is again placed back into the pond. If an individual makes four picks, what is the probability the individual will win a prize exactly one time? (4) (0.32) (0.68) 1! 4! (0.32)¹ (0.68)³ O2(0.32)(0.68) (0.32) (0.68)³
An employment information service claims the mean annual salary for senior level product engineers is $98,000. The annual salaries (in dollars) for a random sample of 16 senior level product engineers are shown in the table to the right. At a = 0.01, test the claim that the mean salary is $98,000. Complete parts (a) through (e) below. Assume the population is normally distributed. Annual Salaries 100,640 82,466 102,499 91,005 96,336 93,622 74,180 77,088 76,188 104,064 82,129 85,069 112,739 80,940 103,966 110,358 Choose the graph which shows the rejection region. O A. В. C. D. t> to - to to t
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