Question 1: What is the probability of obtaining at least 2 successes before the 6th trial if the probability of success is 0.3 in each trial? Answer 1: Probability for success per trial is 0.3. Obtaining at least 2 successful trials is alternatively not obtaining 0 or 1 successful trials. Read more…
A geometric distribution is a distribution in which there is a series of repeated and independent trials (Bernoulli trials with a chance of success or failure), with a fixed chance of success (P).Unlike the binomial distribution, which also consists of a series of Bernoulli trials, the geometric distribution has one Read more…
Question 1: Let’s assume I have a big bowl with 12 green marbles, 30 yellow marbles and 15 blue marbles. If I pull with replacement 8 marbles, what’s the chance 6 of them are non-green? If I pick 10 marbles with replacement, what’s the expected value of the blue marbles Read more…
Question 1: A die is rolled twice and afterwards – a coin is tossed once. What’s the chance to get at least once “1” and also heads? If we got “4” once, what’s the chance that the total is “9”? If we didn’t get “6”, what’s the chance the total Read more…