Mhabeb5757 Mhabeb5757

04-08-2022
Mathematics

contestada

Let x be a discrete random variable. if pr(x<9) = 1/6, and pr(x>9) = 1/3, then what is pr(x=9)?

Respuesta :

Medunno13 Medunno13

14-08-2022

Answer: 1/2

Step-by-step explanation:

The probabilities must add to 1, so:

[tex]P(x < 9) +P(X=9)+P(X > 9)=1\\\\\frac{1}{6}+P(X=9)+\frac{1}{3}=1\\\\P(X=9)=\boxed{\frac{1}{2}}[/tex]

Answer Link

Otras preguntas

how do I solve for x in x^2 - 8x + 12 = 0 using factoring?

6 5/10 as improper fraction

the only Native American who successfully stayed on their land were A) Seminole B) Sauk C) Cherokee D) Fox

events of ww2 that led to UDHR

21.) Which best describes the antecedent in the sentence? Mr. Walker helped Larry with his Latin lessons, but he had to leave early. A. clear B. missing, unc

What is -9*c^.5? Can you please help!! I am so lost!!!

the form of city government merges executive and legislative functions in single group of officials

Read the following idioms and figurative definitions. Match the definitions to its corresponding idiom. Remember, you are looking for what these idioms really m

An illegal drug stimulates the parasympathetic nervous system, causing the user to appear tranquilized. What could indicate to a paramedic whether or not the pe

Simplify. 26 + (–3) ∙ (–8) A. –184 B. –2 C. 2 D. 50