kinseydaviscorr kinseydaviscorr

02-11-2017
Mathematics

contestada

If X is a binomial random variable, compute P(X=x) for each of the following cases:

(a) n=3,p=0.15,x=2
(b) n=4,p=0.5,x=1
(c) n=5,p=0.2,x=1
(d) n=4,p=0.1,x=4

Respuesta :

LammettHash LammettHash

02-11-2017

(a) [tex]\mathbb P(X=2)=\dbinom320.15^2(1-0.15)^{3-2}=\dfrac{459}{8000}\approx0.0574[/tex]

(b) [tex]\mathbb P(X=1)=\dbinom410.5^1(1-0.5)^{4-1}=\dfrac14=0.25[/tex]

(c) [tex]\mathbb P(X=1)=\dbinom510.2^1(1-0.2)^{5-1}=\dfrac{256}{625}=0.4096[/tex]

(d) [tex]\mathbb P(X=4)=\dbinom440.1^4=\dfrac1{10000}=0.0001[/tex]

Answer Link

Otras preguntas

What are the reasons for not increase in height

Solve for x. 2x^2+12x+11-(x+4)^2

Which word in the sentence is a predicate nominative? Franklin d. Roosevelt was the only president of the United States to serve three terms. a. president b. on

Gasoline costs $2.79 per gallon Is the number of gallons proportional to the total cost

Which of the following is a true difference between prokaryotic and eukaryotic cells? a. Eukaryotic cells have true nuclei. b. Eukaryotic cells are smaller. c.

what is 7x7x7x7x7x7 in exponential form

What is needed for an idea to be scientifically reliable?

An ion in a mass spectrometer follows a semicircular path of radius 14.8. What is the distance it travels?

Your middle school has 900 students one third of the students bring their lunch instead of buying your lunch at school what is the value of the ratio of the num

What is an improper fraction