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

Help please algebra !!

Whether a contaminated food such as tomatoes caused an outbreak of gastrointestinal disease is a simple example of:

A key institution that did not directly arise from post-wwii negotiations was the

With this description of Bradford in mind, what will affect his point-of-view?

With a parrelleogram how would you find the area with a base of 4yd and a height of 1.5yd???

A bank account has an initial balance of $450. The account holder deposits $125 every week. How many weeks (excluding any interest paid by the bank) to accumula

Managerial accounting information is generally prepared for

What are the advantages of legalising baby bins ?

Men in the age groups of 18-34 years need to be to run a marathon in 3 hours and 10 minutes to qualify for the boston marathon how many seconds is this?

What does scale mean is science?