« previous next »

Author Question: A population consists of 8 items. The number of different simple random samples of size 3 (without ... (Read 233 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
A population consists of 8 items. The number of different simple random samples of size 3 (without replacement) that can be selected from this population is _____.
 a. 24
  b. 56
  c. 512
  d. 128

Question 2

The expected value of a random variable is the _____.
 a. most probable value
  b. simple average of all the possible values
  c. median value
  d. mean value


Christopher

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Your heart beats over 36 million times a year.

Species richness increases with island size. Species richness increases with island size.
Relationship between body size and seed size in Galapagos finch species Relationship between body size and seed size in Galapagos finch species
Biodiversity Depends on the Size of Habitat Biodiversity Depends on the Size of Habitat
Population Projections of the United States Population Projections of the United States
Relationship between Income per Capita and Population Growth Relationship between Income per Capita and Population Growth
Marking for Population Study Marking for Population Study
Video: Apicomplexan life cycle Animation

For a complete list of videos, visit our video library