• Mayur Vihar 3 Delhi, 110096 India

Back to Test Series
UP TGT Mathematics Statistics Test Series- Part 4

Group A has 8 observations with mean 45 and Group B has 12 observations with mean 55. Find the combined mean.

Type: MCQ • Marks: 1
Group A has 8 observations with mean 45 and Group B has 12 observations with mean 55. Find the combined mean.
Options
A. 51
B. 49
C. 53
D. 50
Explanation
(8×45+12×55)/20=(360+660)/20=51.
Want to attempt the full test series with a timer and instant score? Purchase the package to unlock the complete test. Purchase Now
UP TGT Mathematics

Practice more

This page is indexed for search so students can find questions directly from Google.

Purchase Full Access View full Test Series Browse Test Series
Login / Register
Chat on WhatsApp Go Back Top