To find the probability that a randomly selected number from 20 to 30 is divisible by 3 and then divisible by 12, we first identify the numbers in that range: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. Among these, the numbers divisible by 3 are 21, 24, 27, and 30, which gives us 4 successful outcomes. Next, the only number among these that is also divisible by 12 is 24. Thus, the probability of selecting a number that is divisible by 3 and then, after replacement, is divisible by 12 is the product of the probabilities of each event: ( \frac{4}{11} \times \frac{1}{11} = \frac{4}{121} ).
If you select 45 cards without replacement from a regular deck of playing cards, the probability is 1. For a single randomly selected card, the probability is 2/13.
7
15 19
If the events can be considered independent then the probability is (0.7)4 = 0.24 approx.
Using the Poisson approximation, the probability is 0.0418
If you select 45 cards without replacement from a regular deck of playing cards, the probability is 1. For a single randomly selected card, the probability is 2/13.
Non probability sampling is where the samples are not selected randomly.
1/35 or 2.86%
It is 1/40.
The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.
7
15 19
The answer will depend on what the disease is.
10/12
85/500 = 17%
If the events can be considered independent then the probability is (0.7)4 = 0.24 approx.
The answer is 0.1586