MATHEMATICS · Subjective · CBSE · Mathematics · Probability · Probability
Problem
During a quality check, a factory tested 50 light-bulbs and found that 4 of them were defective.
(i) Find the empirical probability that a bulb chosen at random from this batch is defective.
(ii) Calculate the probability that a bulb selected at random is not defective.
(iii) Express the probability obtained in part (i) as a percentage, correct to one decimal place.
(iv) Show that the sum of the probabilities in parts (i) and (ii) equals 1.