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 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

Rhodopsins are light-sensitive molecules composed of a protein (opsin) and retinal (derivative of vitamin a). opsin is a membrane protein with several alpha-hel
If X and Y vary directly, as x decreases, what happens to the value of y?
solve for a -4+2(3a-5)=(1-1a)
​in a _____ system, the distinction blurs between input, output, and the interface itself.
why did jefferson list specific grievances against george washington III
A form of charcoal was used by stone age humans to create images on __________.
use the distributive property to write the following expression in an equivalent form:6× (10+25)
A nurse is making identical first aid bags for patients using 72 antiseptic wipes, 55 adhesive bandages, and 36 packets of ointment. What is the greatest number
Determine the intercepts of the line. y=-7x+3y=−7x+3
What is the answer to this fraction problem 5/7 - 7/14?