The S.D. of the observations 22,26,28,20,24,30 is
  • a)
    3
  • b)
    2.4
  • c)
    3.42
  • d)
    2
Correct answer is option 'C'. Can you explain this answer?

Related Test

Pioneer Academy
Feb 17, 2022
μ = (22 + 26 + 28 + 20 + 24 + 30)/6
= 150/6 
= 25
x(i) = (xi - μ)2
x(22) = (22-25)2 = 9
x(26) = (26-25)2 = 1
x(28) = (28-25)2 = 9
x(20) = (20-25)2 = 25
x(24) = (24-25)2 = 1
x(30) = (30-25)2 = 25

(xi - μ)2  = 70
Standard deviation : [(xi - μ)2]/N
= (70/6)½
= 3.42

This discussion on The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? is done on EduRev Study Group by JEE Students. The Questions and Answers of The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? are solved by group of students and teacher of JEE, which is also the largest student community of JEE. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for JEE on EduRev and even discuss your questions like The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? over here on EduRev! Apart from being the largest JEE community, EduRev has the largest solved Question bank for JEE.
This discussion on The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? is done on EduRev Study Group by JEE Students. The Questions and Answers of The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? are solved by group of students and teacher of JEE, which is also the largest student community of JEE. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for JEE on EduRev and even discuss your questions like The S.D. of the observations 22,26,28,20,24,30 isa)3b)2.4c)3.42d)2Correct answer is option 'C'. Can you explain this answer? over here on EduRev! Apart from being the largest JEE community, EduRev has the largest solved Question bank for JEE.