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

Both weathering and erosion are

The surface temperature of four stars is shown in the table below. Surface Temperature Star Temperature (Degree Celsius) A 3,600 B 6,000 C 2,000 D 15,000 If one

What is the surface area of the square pyramid below?

All organisms contain _____ and require it to survive A. Helium B. Carbon C. Zinc D. Polonium

Based on what you have learned about the British government, how are the people most likely democratically governed? A). By a direct democracy B). By a represen

What is the length of FF in the right triangle below 25 and 7

blacklisting and the house un-american activities committe

tert-Butyl alcohol is a solvent with a Kf of 9.10 ∘C/m and a freezing point of 25.5 ∘C. When 0.807 g of an unknown colorless nonelectrolyte liquid was dissolved

Pls help soooo I don’t get a C in French class .

:) ^^^^^^^^^^^^^^^^^^^^^^^^^^^