arch engine looks for a keyword in 10 databases, searching them in a random f these databases contain the given keyword. ability that it will be found in at least 2 of the first 4 searched databases is [P] %. ROUNI

Q: ive people will be randomly selected from a group of 15.  How many combinations are possible? There…

A: Five people will be randomly selected from a group of 15 Thus this is a problem of combinations  we…

Q: Five of a sample of 100 computers will be selected and tested How many ways are there to make this…

A: We will choose a group of 5 computers from 100 computers.

Q: Suppose an ATM PIN must consist of 6 numbers from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, with…

A: Given, An ATM PIN must consist of 6 numbers from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, with…

Q: A combinarion lock requires a user to select 3 numbers to unlock it, where all 3 numbers are between…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.it…

Q: Ten draws are made at random with replacement from the box 1,2,5,8,9 the sum of the draws turns out…

A:

Q: Construct a tree diagram showing all possible results when three coins are tossed.Then list the ways…

A:

Q: what errors can occur in a factorial design when using two or more independents

A: Introducing more independent variables can make the system needlessly complex .

Q: A lottery involves randomly selecting 4 digits from 0-9, inclusively, without replacement. What is…

A: Answer

Q: show that number of 132- avoiding permutations are equal to number of 123-avoiding permutations

A: We have to show that number of 132- avoiding permutations are equal to number of 123-avoiding…

Q: a character can be either a letter or a digit. what is the probability that a password of three…

A: From the given information, An alphabet contains 26 letters. And there are 0 to 9 have 10 digits.

Q: Among n ≥ 2 people, how many (unordered) pairs do you expect to share the same birthday? (365 day…

A: Assume 365 days in a year and that all days are equally likely. Since the birthday of any person can…

Q: A shop has 6 types of candy. How many ways are there to select 24 pieces of candy with at least two…

A: The shop has 6 types of candy, so for each candy there are 6 ways of selection. 2 of each kind are…

Q: A lottery selects 2 digits from 0-9 without replacement. What is the probablilty that all 2 digits…

A:

Q: Suppose a designer has a palette of 15 colors to work with, and wants to design a flag with 3…

A: The designer has a palette of 15 colors and he needs to choose 3 colors. The colors chosen for the…

Q: selecting three (3) coins, but assume that there are 5 dimes, 3 nickels, and 2 quarters. In how…

A:

Q: Assume that you have 8 dimes and 4 quarters (all distinct), and you select 3 coins. In how many…

A: The number of dimes is 8 and the quarters is 4.

Q: A survey showed that 33% of human resource professionals are at companies that rejected job…

A: Given: Probability that human resource professionals reject the candidates, p=0.33 Sample size, n=25

Q: how many different ways can first-place, second-place, and third-place be decided in a 25-person…

A: In how many different ways can first-place, second-place, and third-place be decided in a 25-person…

Q: A license plate has six characters. Two characters are letters, two characters are numbers (0-9),…

A: Answer:

Q: One 12-digit binary code (leading zeros allowed) is randomly generated by a computer. What is the…

A: a

Q: Determine the number of 10-permutations of the multiset {4.a, 4.b,5.c}

A: Given: 4.a, 4.b, 5.c n = total number of objects r = number of objects selected   Formula: The…

Q: A bag contains 7 black and 9 white balls. In how many ways can we draw from the bag groups of 4…

A:

Q: A computer system uses passwords constructed from the 26 letters (a-z, lowercase only) or 10…

A: Let A be the event containing only lower case letters  Let B be the events containing exactly 1…

Q: Many states have a lottery game, usually called Pick-4, in which you pick a four-digit number such…

A: