Advertisement Remove all ads

In a Box Containing 100 Bulbs, 10 Are Defective. the Probability that Out of a Sample of 5 Bulbs, None is Defective is - Mathematics

In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is

(A) 10−1

(B) `(1/2)^5`

(C) `(9/10)^5`

(D) 9/10

Advertisement Remove all ads

Solution

The repeated selections of defective bulbs from a box are Bernoulli trials. Let X denote the number of defective bulbs out of a sample of 5 bulbs.

Probability of getting a defective bulb, p = 10/100 = 1/10

The correct answer is C.

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

NCERT Class 12 Maths
Chapter 13 Probability
Q 14 | Page 578
Advertisement Remove all ads

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×