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

1. Distilled water has a hydronium ion concentration of 1 × 10–7 M. What is the pH of distilled water? 7 –7 10 1 × 10–7 2. A compound has

A cell with a defective p53 gene is likely to (1 point) stop responding to growth regulators. stop dividing to produce daughter cells. generate hormones that c

The USS Alabama, built in 1942, is a monster weighing in at 35,000 tons. The ship was built during the Second World War and spent 40 months actively assisting t

What do to keep in a database

Solve for the indicated variables: P=R-C; Solve for C

complimentary angles are the sum

Conclusion: Seeing Eye Dogs are an effective way to assist those with vision loss. A study was conducted to test the effectiveness of Seeing Eye Dogs. People wi

Which type of friction can best be described as the force between objects that are moving? A. Sliding Friction B. Static Friction C. Kinetic Friction D. Rollin

Based on the data in this two-way table, which statement is true? Type of Flower/Color Red Pink Yellow Total Rose 40 20 45

the verb tense of the sentence "they will have already taken the test" is which of the following? a. future past b. present perfect c. future perfect