A shop has 50 televisions, out of which 5 are defective. What percent of television is defective?

Suppose there are three bags such that Bag A has 10 bulbs out of which 4 are defective. Bag B has 6 bulbs out of which 1 is defective Bag C has 8 bulbs out of which 3 are defective. A bag is chosen at random and then a bulb is randomly chosen from the chosen bag. (i) Find the probability that the bulbs is non-defective (ii) If the bulb is non-defectivem, find the probability that it came from bag C?

Which has Frenkel defect ?

Three electric bulbs are chosen at random from 15 bulbs of which 5 are defective. The probability that atleast one is defective is

If 1 pen is selected from a batch of 500 pens of which 50 are defective, then probability that it is non-defective is

A box contains 15 transistors, 5 of which are defective. An inspector takes out one transistor at random, examines it for defects, and replaces it. After it has been replaced another inspector does the same thing, and then so does a third inspector. The probability that at least one of the inspectors find a defective transistor is equal to :

A box contains 100 bulbs out of which 10 are defective. A sample of 5 bulbs is drawn. The probability that none is defective , is