Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Assessments
Math TN
9th Std
Ch-8: Statistics
7.
The arithmetic mean
Exercise condition:
1
m.
The average mark of \(25\) students was found to be \(78.4\). Later on, it was found that score of \(96\) was misread as \(69\). Find the correct mean of the marks.
\(69.29\)
\(84.68\)
\(79.44\)
\(79.48\)
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!