SOLUTION: The mean of the 20 students’ scores in my first section is 75. The mean of the 30 students’ scores in my second section is 85. What is the overall mean for both sections?

Algebra.Com
Question 859769: The mean of the 20 students’ scores in my first section is 75. The mean of the 30 students’ scores in my second section is 85. What is the overall mean for both sections?

Answer by girish221178(1)   (Show Source): You can put this solution on YOUR website!
Overall Mean =
.
.
.
= 81.66

RELATED QUESTIONS

A class of 24 students took a test. The mean of the test scores for the whole class was... (answered by stanbon,richwmiller)
To determine if the mean test scores of English students, µE, is higher than from the... (answered by Fombitz)
Suppose ACT Mathematics scores are normally distributed with a mean of 20.8 and a... (answered by Boreal)
Two mathematics classes took the same test. The mean of the first class of twenty... (answered by richwmiller)
6. A psychology professor of a large class became curious as to whether the students who... (answered by Boreal)
Can somebody help me solve this question for Elementary stats class: A final exam in... (answered by Edwin McCravy)
A math teacher gives two different tests to measure students' aptitude for math. Scores... (answered by rothauserc)
In 2012, 1,664,479 students took the SAT exam. The distribution of scores in the verbal... (answered by ewatrrr)
d. There are 200 students in a sample. How many of these students will have scores that... (answered by dbd25305)