subject
Mathematics, 11.03.2021 07:50 asilverman

If we sample from a small finite population without replacement, the binomial distribution should not be used because the events are not independent. If sampling is done without replacement and the outcomes belong to one of two types, we can use the hypergeometric distribution. If a population has A objects of one type, while the remaining B objects are of the other type, and if n objects are sampled without replacement, then the probability of getting x objects of type A and n-x objects of type B under the hypergeometric distribution is given by the following formula. In a lottery game, a bettor selects four numbers from 1 to 50 (without repetition), and a winning four-number combination is later randomly selected. Find the probabilities of getting exactly two winning numbers with one ticket. (Hint Use A= 4, B = 46, n= 4, and x=2.) A! B! (A+B)! P(x) = (A - x)!x! (B-n+x)!(n - x)! (A+B-n)!n! کما P(2)= (Round to four decimal places as needed.)​

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:10, xxaurorabluexx
An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?
Answers: 1
image
Mathematics, 21.06.2019 19:20, mrskhg3395
Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a
Answers: 2
image
Mathematics, 21.06.2019 19:40, evarod
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
image
Mathematics, 21.06.2019 20:10, tiggyandrep2dbee
Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis
Answers: 3
You know the right answer?
If we sample from a small finite population without replacement, the binomial distribution should no...

Questions in other subjects:

Konu
Mathematics, 20.09.2020 07:01