All Categories Alerts Wishlist Cart

The mean of a data set is 10 and the variance is 4. What is the standard deviation? (2019)

Practice Questions

1 question
Q1
The mean of a data set is 10 and the variance is 4. What is the standard deviation? (2019)
  1. 2
  2. 4
  3. 8
  4. 10

Questions & Step-by-step Solutions

1 item
Q
Q: The mean of a data set is 10 and the variance is 4. What is the standard deviation? (2019)
Solution: Standard deviation is the square root of variance. Therefore, SD = √4 = 2.
Steps: 0

Related Questions

W
What is the value of x in the equation 4x - 7 = 9? (2022)
Question: What is the value of x in the equation 4x - 7 = 9? (2022)Options: 4563Correct Answer: 4Exa..
I
If the sum of two numbers is 20 and their product is 96, what are the numbers? (
Question: If the sum of two numbers is 20 and their product is 96, what are the numbers? (2021)Optio..
I
If a rectangle has a length of 8 cm and a width of 5 cm, what is its perimeter?
Question: If a rectangle has a length of 8 cm and a width of 5 cm, what is its perimeter? (2022)Opti..
A
A box contains 5 red balls and 3 blue balls. What is the probability of drawing
Question: A box contains 5 red balls and 3 blue balls. What is the probability of drawing a red ball..
I
If the ratio of the ages of A and B is 3:4 and the sum of their ages is 28 years
Question: If the ratio of the ages of A and B is 3:4 and the sum of their ages is 28 years, what is ..
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely