In a school there are 35 students in class 2A and 40 students in class 2B. The mean score for class 2A in English literature examination is 60 and that of 2B in the same paper is 52.5, find to one place of decimal mean for the combined class

Answer 1

To find the mean for the combined class, we need to take into account the number of students in each class.

The total number of students in both classes is 35 + 40 = 75.

To find the combined mean, we can use the formula:
Mean = (Σx) / n

Where Σx is the sum of all the individual scores and n is the total number of students.

For class 2A:
Σx = mean * number of students = 60 * 35 = 2100

For class 2B:
Σx = mean * number of students = 52.5 * 40 = 2100

Now, add up the scores of both classes:
Total Σx = 2100 + 2100 = 4200

Now, find the mean for the combined class:
Mean = Total Σx / total number of students = 4200 / 75 = 56.0

Therefore, the mean score for the combined class in English literature is 56.0 to one decimal place.