This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The calculational formula for variance differs from the definitional formula because the ... (Read 469 times)

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
on: Jun 19, 2018
The calculational formula for variance differs from the definitional formula because the calculational formula _____.
 
  a. does not require the computation of deviation scores
  b. uses only raw scores, number of scores, and the mean
  c. is more efficient
  d. all of these

Question 2

If a deviation score is positive, _____.
 
  a. the raw score lies above the mean c. the raw score is an extreme score
  b. the mean lies above the raw score d. the mean is an extreme score


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

djofnc

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 19, 2018
Answer to Question 1

D
The calculational formula does not require computation of deviations from the mean. It is more efficient because it utilizes only the raw scores, the number of scores, and the mean.

Answer to Question 2

A


mckennatimberlake

  • Member
  • Posts: 559
Reply 2 on: Jun 19, 2018
Wow, this really help

Jossy

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Apidium may be ancestral to all later higher primates and is reconstructed as looking like a small-b Apidium may be ancestral to all later higher primates and is reconstructed as looking like a small-b
Half-life Formula Half-life Formula
Slope Formula Slope Formula
How many carboxylic acids and esters share the molecular formula C2H4O2? How many carboxylic acids and esters share the molecular formula C2H4O2?
molecular formula molecular formula
Distributions and variance Distributions and variance
Video: Hyperglycemia Animation

For a complete list of videos, visit our video library