Use app×
Ask a Question
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE

Find the standard deviation by using 20 as assumed mean.

← Prev Question Next Question →
0 votes
199 views
in Statistics by (69.0k points)
closed by
Find the standard deviation by using 20 as assumed mean.
image
Play Quiz Game >

1 Answer

0 votes
by (67.8k points)
selected by
 
Best answer
image
Here `a=20`
Standard deviation `sigma=sqrt((sumf_(i)d_(i)^(2))/(sumf_(i))-((sumf_(i)d_(i))/(sumf_(i)))^(2))`
`=sqrt(6525/37-(265/37)^(2))`
`=sqrt(176.35-51.30)`
`=sqrt(125.05)=11.18`
← Prev Question Next Question →

Find MCQs & Mock Test

  1. JEE Main 2025 Test Series
  2. NEET Test Series
  3. Class 12 Chapterwise MCQ Test
  4. Class 11 Chapterwise Practice Test
  5. Class 10 Chapterwise MCQ Test
  6. Class 9 Chapterwise MCQ Test
  7. Class 8 Chapterwise MCQ Test
  8. Class 7 Chapterwise MCQ Test

Related questions

0 votes
2 answers
If assumed mean is ‘a’, then mean =
asked Dec 16, 2021 in Statistics by SatyamSarangi (35.6k points)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

User Contribution to Sarthaks eConnect
Managed by Sarthaks Digitizing India
...