SOLUTION: The average test mark for class of 20 students is 65. Peter's mark was recorded as 54 instead of 55. What is the correct average mark for the test
Algebra.Com
Question 1086319: The average test mark for class of 20 students is 65. Peter's mark was recorded as 54 instead of 55. What is the correct average mark for the test
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
So the total of all 20 students' scores is 1300. It should be 1301.
So then,
Not much change.
RELATED QUESTIONS
The average mark on a test for a class of 35 students was 61%. The average mark obtained... (answered by josmiceli)
Class of 20 students merged with class of 20 students. The average mark at a test in the... (answered by ewatrrr)
the average mark scored by students in a class is 65. the average mark of girls is 80.... (answered by Fombitz)
Twelve girls and 8 boys in a class took the same test.
The mean mark for the girls is... (answered by Theo)
the average mark on a test for six students was calculated to be 84. one of the student's (answered by ankor@dixie-net.com)
In a school of three classes pupils took the same examination. Class A contain 30 pupil... (answered by ankor@dixie-net.com)
For a maths test, the mean is 65, the standard deviation is 8. What percent of students... (answered by stanbon)
the average test mark of three students is 16. if two of the students each received a... (answered by checkley77)
Two mathematics classes in Year 12 general maths course sat for some assessment task and... (answered by ramkikk66)