Question

известно что тз каждых 1000 лампочек-19 бракованных.Какова вероятность приобрести бракованную лампочку?

Answer 1

19/1000=0.019

Пошаговое объяснение:

вроде так

Answer 2

Probability of Purchasing a Defective Light Bulb

The probability of purchasing a defective light bulb can be calculated using the defect rate provided. In this case, it is known that for every 1000 light bulbs, there are 19 defective ones.

The probability of purchasing a defective light bulb can be calculated using the formula:

Probability = (Number of defective items) / (Total number of items)

Substituting the given values: Probability = 19 / 1000 = 0.019

Therefore, the probability of purchasing a defective light bulb is 0.019 or 1.9%.

This means that for every light bulb purchased, there is a 1.9% chance that it will be defective.