Mathematics, 14.04.2021 22:10, adamske0

Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair facility currently has 25 failed keyboards, 10 of which have electrical defects and 15 of which have mechanical defects. (b)
In how many ways can a sample of 7 keyboards be selected so that exactly two have an electrical defect?
(c)
If a sample of 7 keyboards is randomly selected, what is the probability that at least 6 of these will have a mechanical defect? (Round your answer to four decimal places.)

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 20.06.2019 18:04, gymer630

Note: enter your answer and show all the steps that you use to solve this problem in the space provided. x − 2 − 1 0 1 2 y use the function rule to complete the table. − 10 x + y = 4

Answers: 1

continue

Mathematics, 21.06.2019 18:00, jabraeshaw

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Answers: 1

continue

Mathematics, 21.06.2019 20:30, natebarr17

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Answers: 2

continue

Mathematics, 21.06.2019 22:30, Backfire3607

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7

Answers: 2

continue

Do you know the correct answer?

Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair f...