permutationawkward said:If you think you know the answer, how about sharing your solution with us?
awkward said:You have the right idea but you need to check your numbers.
There are C(53,2) ways to draw 2 items from the box. We assume all of these are equally likely. Of these, how many consist of one defective and one non-defective?
Close but not quite right. The complication is that the draws are not independent events. Since you are drawing balls without replacement, if you draw a good ball on the first draw it changes the probability that you will draw a bad draw on the second draw. Numerically, there won't be much difference, in this case, though-- you could say the draws are "almost independent".lorik said:It should be about 50% chance of one consisting non defective and the other being defective I THINK
in practice assume we have 50 balls 25 good and 25 bad ,we draw 2 balls and it should be G1/2 * B1/2 ?
Probability is the measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 represents impossibility and 1 represents certainty.
To calculate the probability of an event, divide the number of favorable outcomes by the total number of possible outcomes. This is known as the classical definition of probability.
A small sample refers to a subset of a larger population. It is typically used in statistical analysis when it is not feasible or practical to collect data from the entire population.
The larger the sample size, the more accurate the estimation of the probability of a defective item. This is because a larger sample size reduces the effect of random chance and provides a more representative sample of the population.
Some factors that can affect the probability of a defective item in a small sample include the quality control measures in place, the production process, and the characteristics of the item itself. Additionally, sampling methods and sample size can also impact the probability.