This topic contains a solution. Click here to go to the answer

Author Question: If E(X1) = 5, then E(3X1-7) = ________. a.5. b.15. c.2. d.8. ... (Read 17 times)

karen

  • Hero Member
  • *****
  • Posts: 537
If E(X1) = 5, then E(3X1-7) = ________.
  a.5.
  b.15.
  c.2.
  d.8.

Question 2

Find the mean and variance for the continuous random variable X where
  .

  a.E(X) = 4/3 and var(X) = 2/9
  b.E(X)= 4 var(X) = 56/9
  c.E(X)= 4/3 var(X) = 56/9
  d.E(X)= 4 var(X) = 2/9



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

hugthug12

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

correct: d

Answer to Question 2

correct: a




karen

  • Member
  • Posts: 537
Reply 2 on: Aug 1, 2018
Gracias!


6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

For a complete list of videos, visit our video library