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

how many moles of nitrogen are in 3.7 moles of C8H11NO2?
What type of natural disaster struck Haiti in 2010 and killed more than 200,000 people? A. a volcano B. a tsunami C. a hurricane D. an earthquake
What are three famous monuments in Bolivia? Explain the cultural importance of each monument For each.. When do people go there? What do they do? Why do people
Frank and Jack are playing a number game. Frank tells Jack “I’m thinking of a number between 1 to 10. if I multiply the number by seven and add five I get 26” W
What's the answer (3/12 + 1/2) - 11/12 pls show work I need help
What does this quote mean to you?
Use the unit price to find the total price 28ft2 at $3.89 per square foot
I don't understand this question p, someone plz help me!
n △ABC, point M is the midpoint of AB point D is the midpoint of CM and ABMD=3 cm2. Find ACDB, AAMC, AABD, AADC, and AABC.
Can someone please help me I need it ASAP