kimberlyvargas3762 kimberlyvargas3762
  • 21-08-2020
  • Mathematics
contestada

The nonnegative function given below is a probability density function.
{3/7 e^−3t/7 if t ≥ 0
0 if t < 0
(a) Find P(0 ≤ t ≤ 2).
(b) Find E(t).

Respuesta :

batolisis
batolisis batolisis
  • 22-08-2020

Answer:

a) 0.5756

b) 2.3333

Step-by-step explanation:

A) for p ( 0 ≤ t ≤ 2)

  = 1 - [tex]e^\frac{6}{7}[/tex] =  0.5756

B) for E(t)

= 7/3 = 2.3333

attached below is the remaining part of the solution

Ver imagen batolisis
Answer Link

Otras preguntas

A box has 14 camera of which 6 are refurbished and 8 are new. If four of these 14 cameras are selected at random without replacement, what is the probability th
What is the answer to this question
how could a conventional farm be more economically sustainable than an organic farm
Have you ever uploaded a photo you took to a social media site? If so, there is a good chance that because you agreed to the social media company’s terms of ser
Describe the goals of Roosevelt's New Deal, and evaluate its effects < Read Less X B I $ * * = 7
What is the area of a sector with a central angle of 5π6 radians and a radius of 5.6 ft? Use 3.14 for π and round your final answer to the nearest hundredth.
HELP ME!!!!! ......​
the perimeter of a rectangle swimming pool is 486 feet. The width of the pool is 35 feet less than the length. Find the length and the width​
If you are in a situation where drinks are being served, your first decision should be __________________. To call the police To call the parents To make sur
The air temperature at 2 pm was 12º. What was the air temperature at 8 pm, if it had dropped 15ºby then?