« previous next »

Author Question: A sample of n = 25 scores has M = 20 and s2 = 9 . What is the sample standard deviation? a. 3 c. ... (Read 45 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
on: Jun 20, 2018
A sample of n = 25 scores has M = 20 and s2 = 9 . What is the sample standard deviation?
 
  a. 3 c. 9
  b. 4.5 d. 81

Question 2

Which of the following symbols identifies the sample variance?
 
  a. s c.
  b. s2 d.  2


kjohnson

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Major Findings of the High Scope Preschool Study High Scope participants showed better academic per Major Findings of the High Scope Preschool Study High Scope participants showed better academic per
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Sample prescriptions of antibiotics for prophylaxis against infective endocarditis. Sample prescriptions of antibiotics for prophylaxis against infective endocarditis.
How to sketch a quadratic equation that is in standard form (Question 2) How to sketch a quadratic equation that is in standard form (Question 2)
IQ scores form what mathematicians call a normal distribution "bell curve" IQ scores form what mathematicians call a normal distribution "bell curve"
Find a quadractic equation that models the data in standard form Find a quadractic equation that models the data in standard form
Video: Simple and Double Sugar

For a complete list of videos, visit our video library