Author Question: The probability density function for the number of red marbles in a randomly selected sample of ... (Read 150 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513

  The probability density function for the number of red marbles in a randomly selected sample of colored marbles is given below. What is the probability that there are 3 or fewer marbles in the sample chosen?
 
 

  a.0
  b.0.55
  c.1.00
  d.0.05

Question 2


  What does P(X = k) equal to for a discrete random variable?
 

  a.P(X = k) = sum of the probabilities of all simple events for which X = k
  b.P(X = k) = k
  c.P(X = k) = product of the probabilities of all simple events for which X = k
  d.P(X = k) =



Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

correct: c

Answer to Question 2

correct: a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

For a complete list of videos, visit our video library