We at askmath believe that educational material should be free for everyone. Please use the content of this website for indepth understanding of the concepts. Additionally, we have created and posted videos on our youtube.
We also offer One to One / Group Tutoring sessions / Homework help for Mathematics from Grade 4th to 12th for algebra, geometry, trigonometry, precalculus, and calculus for US, UK, Europe, South east Asia and UAE students.
Affiliations with Schools & Educational institutions are also welcome.
Please reach out to us on [email protected] / Whatsapp +919998367796 / Skype id: anitagovilkar.abhijit
We will be happy to post videos as per your requirements also. Do write to us.
Mean (or average) of observations, as we know, is the sum of the values of all the observations divided by the total number of observations. f_{1} x_{1} + f_{2} x_{2} + . . . + f_{n} x_{n} x =  f_{1} + f_{2} + . . . + f_{n} 
Σf_{i} x_{i} x =  Σ f_{i} 
Weight (in Kgs)  67  70  72  73  75 
Number of students  4  3  2  2  1 





















Σf_{i} x_{i} 843 x =  =  = 70.25 kg Σ f_{i} 12 































Σf_{i} x_{i} x =  Σ f_{i} 




































Σf_{i} x_{i} x =  Σ f_{i} 
RussiaUkraine crisis update  3rd Mar 2022
The UN General assembly voted at an emergency session to demand an immediate halt to Moscow's attack on Ukraine and withdrawal of Russian troops.