Statistics
posted by Milen .
Thirtytwo students took a 50item Biology test. The average score obtained is 42. The next day, three students who were absent took the test and obtained 35, 39 and 43. What is the average score of the 35 students?

Mean = Sum of scores/number of scores
42 = Sum of scores/32
Solve for sum.
mean = (Sum+35+39=43)/35
I'll let you do the calculations. 
Thirtytwo students took a 50item science test.The average score obtained is 42.The next day,three students who were absent took the test and obtained the scores of 35,39 and 31.What is the average score for the whole class of 35 students?
Pls show the solution
Respond to this Question
Similar Questions

math algebra
42 students took a test in school where the passing score was 70. the mean score of the 42 students taking the exam was 75.5 while the mean score of the students who passed the test was 81, and the mean score of the students who failed … 
hard math
42 students took a test in school where the passing score was 70. the mean score of the 42 students taking the exam was 75.5 while the mean score of the students who passed the test was 81, and the mean score of the students who failed … 
math
The average score on a reading test for 58 students was 87.3. Twelve more students took the test. The average of the 12 students was 90.7. What was the average for all students? 
algebra
students in a biology class just took a final exam. a formula for predicting the average exam grade on a similar test t months later is. s(t)=7815log(t+1) (a)find the students average score when they first took the final exam. (b)what … 
Algebra
Ms Newton's class took the same test as Mr. Euclid's students. Ms. Newton's class has 20 students, and the average(mean) test score was 90. The average of Mr. Euclids class was 80. If you combine both classes the average score on the … 
Algebra
Ms Newton's class took the same test as Mr. Euclid's students. Ms. Newton's class has 20 students, and the average(mean) test score was 90. The average of Mr. Euclids class was 80. If you combine both classes the average score on the … 
statistics
At a local high school students were randomly assigned to one of two math teachers Mrs smith and mrs jones. After the assignment, Mrs Smith had 30 students and mrs jones had 25 students. at the end of the year each class took the … 
Algebra
The 22 students present for a recent test in Ms. Huangâ€™s class had an average score of 88. When students who were absent took the test, three scored 4 points higher than the average and two scored one point higher than the average. … 
math hw
10.Thirty students in a chemistry class took a test on which the overall average score was 78. If the average score for 15 of those students was 85, what was the average score for the remaining members of the class? 
Math
The score for half of the students in a class on a certain test was 90. The score for another fourth of the students was 84. if the average (arithmetic mean) score for all of the students was 82, what was the average score for the …