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Consider three observations a, b and c such that b = a + c. If the standard deviation of: Statistics
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Consider three observations a, b and c such that b = a + c. If the standard deviation of a + 2, b + 2, c + 2 is d, then which of the following is true?
(1) b2 = 3(a2 + c2) + 9d2
(2) b2 = a2 + c2 + 3d2
(3) b2 = 3(a2 + c2 + d2)
(4) b2 = 3(a2 + c2) – 9d2
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#mathematics #math #maths #mathematician #mathproblems #mathmemes #education #mathteacher #coordinategeometry #relation #sets #mathskills #mathstudent #mathematical #mathisfun #geometry #mathematicians #engineering #mathstudents #school #study #learning #memes #mathmeme #facts
Consider three observations a, b and c such that b = a + c. If the standard deviation of a + 2, b + 2, c + 2 is d, then which of the following is true?
(1) b2 = 3(a2 + c2) + 9d2
(2) b2 = a2 + c2 + 3d2
(3) b2 = 3(a2 + c2 + d2)
(4) b2 = 3(a2 + c2) – 9d2
IITJEE MATHS QUESTION BANK PLAYLIST LINK :
-----------------------------------------------------------------------------------------------------------------------Our services which are FREE for all | Only serious students apply:
• Take FAST & avail up to 100% Scholarship | Register by calling at 8010996622
• Apply for TEST SERIES for PRAYAAS Crash Course JEE Main | KVPY | NTSE and CBSE (Class 8 to 10) by calling at 8010996622
-----------------------------------------------------------------------------------------------------------------------
Infinity Vision is a premier organization for competitive exam preparation. With us, students prepare for the toughest of examinations such as IIT – JEE, NEET, KVPY, NTSE, IMO, etc. & pave the way towards a successful career. We offer intensive Foundation Courses for Class 6th to 10th which is ideal for the preparation of NTSE, KVPY, IMO, NSEJS, INO, RIMC, and for different school level competitions and Olympiads. For Class 11th & 12th, we provide an extensive online/classroom program to prepare for IIT – JEE/NEET, KVPY & Board Exams.
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