A lot consists of 144 ball pens of which 20 are are defective and the other are good. Nila will buy a pen if it is good, but will not by if it is defective. The shopkeepers draws one pen at random and given to her. What is the probability that She will buy it.

A lot consists of 144 ball pens of which 20 are defective and the other are good. Nila will buy a pen if it is good, but will not buy if it is defective. The shopkeepers draws one pen at random and given to her. What is the probability that She will not buy it.

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is the prpbability that (i) She will buy it?

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is the prpbability that(ii) She will not buy it?

a lot consist of 100 ball pens of which 16 are defective and others are good Subhana will buy a pen if it is good but will not buy if it is defective the shopkeeper draw one pen at random and given to her what is the probability that she will buy it

a lot consist of 100 ball pens of which 16 are defective and others are good Subhana will buy a pen if it is good but will not buy if it is defective the shopkeeper draw one pen at random and given to her what is the probability that she will not buy it.

A lot of 20 bulbs contain 4 defective ones. One bulbs is drawn at random from the lot. What is the probability that this bulb is defective?

A lot of 20 bulbs contain 4 defective ones. One bulbs is drawn at random from the lot.Suppose the bulb drawn in (i) is not defective and is not replaced. Now one bulb is drawn at random from the rest. What is the probability that this bulb is not defective?

A carton consist of 100 shirt of which 88 are good, 8 have minor defects and 4 have major defects. Jimmy, a trader will only accept the shirt which are good, but Sujatha another trader will only reject the shirt which have major defect. 1 shirt is drawn at random from the carton what is the probability that acceptable to Jimmy

A carton consist of 100 shirt of which 88 are good, 8 have minor defects and 4 have major defects. Jimmy, a trader will only accept the shirt which are good, but Sujatha another trader will only reject the shirt which have major defect. 1 shirt is drawn at random from the carton what is the probability that it is acceptable to Sujatha

12 defective pens are accidentally mixed with 132 good ones.It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.