teelavee3619 teelavee3619

24-05-2023
Mathematics

contestada

Letbe a random variable with the following probability distribution
Value x of X / P (X=x)
20 / 0.05
30 / 0.05
40 / 0.35
50 / 0.20
60 / 0.35
Find the expectation of E(X) and variance Var (X) of X.
(A) E (x) = ?
(B) Var (X) = ?

Respuesta :

Otras preguntas

What do the side lengths of the area models (1,3,5,9,15 and 45) represent? (B) what do these side lengths represent? (C) what is the greatest common side length

What was the most exciting part to read in “The Cold Equations”? What did the author do to make this part interesting? Explain your answer in three to five sent

What is bigger 3/4 or 4/5

When beginning an exercise program, people with asthma should always

RS bisects ∠QRT. If m∠QRT = 116, what is m∠QRS?

Why were Quakers in England often persecuted? A.The leader of the Quakers, William Penn, had once been a personal friend of the king, but the two had becom

Matthew goes hiking every 12 days and swimming every 6 days. how many days from now will he go both hiking and swimming again?

Use an are model to find the product of 24x21

So what's the answer ?

Why is there so much variety of bacteria in the mouth