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

Which organism has lungs? frog insect fish jellyfish
Brainliest if correct OK History Final Assessment Who benefited most from Andrew Jackson's plan to remove American Indians to the West? O American Indians, who
what was the initial reason many european explorers sailed to the americas?
What is the slope of the line? 7x + 2y=5 A. 7/2 B. -7/2 C. -2/7 D. 2/7
In an effort to reduce the turnover nurses your hospital
are any of you guys getting anything for anyone for christmas
an expression of Avogradros law
Which of the following individuals created the Black Entertainment Television (BET) network and became the first African American billionaire? A. Oprah Winfrey
Vernon lives in New Mexico and pays 5% in sales tax. He bought an air conditioner, and the amount he paid after sales tax was $1527.75. What was the cost of the
same, but balanced nevertheless Describes a composition that contains very little, if any, energy.