Mathematics, 12.02.2020 04:35, normakite

Eighteen telephones have just been received at an authorized service center. Six of these telephones are cellular, six are cordless, and the other six are corded phones. Suppose that these components are randomly allocated the numbers 1, 2, . . . , 18 to establish the order in which they will be serviced. (Round your answers to four decimal places.)

(a) What is the probability that all the cordless phones are among the first twelve to be serviced?

Ans: .0498 Correct: Your answer is correct.

(b) What is the probability that after servicing twelve of these phones, phones of only two of the three types remain to be serviced?

Ans: .0356 Incorrect: Your answer is incorrect.

(c) What is the probability that two phones of each type are among the first six serviced?

Ans: .0000000000005 Incorrect: Your answer is incorrect.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:50, kefernanda40

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

Answers: 1

continue

Mathematics, 21.06.2019 17:50, aaroncx4900

Jace wrote a sentence as an equation. 56 is 14 more than a number. 14+ = 56 which statement best describes jace's work? jace is not correct. the phrase more than suggests using the symbol > and jace did not use that symbol. jace is not correct. he was correct to use addition, but the equation should be 56+ p = 14 jace is not correct. the first number in the sentence is 56, so the equation should start with 56. jace is correct. the phrase more than suggests addition, so jace showed that 14 plus a variable equals 56. o

Answers: 1

continue

Mathematics, 21.06.2019 18:50, abbieT6943

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Answers: 1

continue

Mathematics, 21.06.2019 19:00, alyssa5485

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

Answers: 2

continue

Do you know the correct answer?

Eighteen telephones have just been received at an authorized service center. Six of these telephones...