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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Many states have a lottery game, usually called Pick-4, in which you pick a four-digit number such as 7359. During the lottery drawing, there are four bins, each containing balls numbered 0 throug 9. One ball is drawn from each bin to form the four gigit winning number. There are many variations of this game. The primary variation allows you to win if the four digits in your numuber are selected in any order as long as they are the same four digits as obtained by the lottery agency. For example, if you pick four digits makng the number 1265, then you will win if 1265, 2615, 5216, 6521, and so forth, are drawn, The variations of lottery game depend on how many unique digits are in your umber. Consider the following four different versions of this game. Find the proability: 4) One digit appears three times
With a short time remaining in the day, a delivery driver has time to make deliveries at 6 locations among the 8 locations remaining. How many different routes are possible?
A student works in a bookstore where he is required to work at least four and at most five days a week, at least one of which has to be a weekend day (Saturday or Sunday). How many different weekly work schedules can this student have?
d. [Permutation] Solve the following problems - Find the number of words that can be formed by using the letters of the word "DEMOCRACY" where first letter will be always C and last letter will be R. e. [Combination] A group of 15 students is to be formed from 44 students of MATI00 Course. Among the students of the course there is 2 renowned batsmen, 3 spinners, 2 fast blowlers and 2 wicketkeepers. How many different ways this can be done so as always to (i) include 1 renowned batsman, 1 fast bowler, 1 spinner and 1 wicketkeeper; and (ii) exclude spinners? 2.
With a short time remaining in the day, a delivery driver has time to make deliveries to 6 different locations among the 7 locations remaining. How many different routes are possible?

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