Hey wt is this dont post like this answers
Answers
Open menu or program. Example, to open the Edit menu in WordPad, press Alt then press E on your keyboard.
...
Desktop, My Computer, and File Explorer.Required Answer:-
Mean or Average is calculated by dividing the total sum of all items by the total number of items.
In this question, we have to add all the marks and divide it by total number of students.
Class - (1)
No. of students = 100
Mean marks = 30
Then, Total marks = 100 × 30 = 3000
Class - (2)
No. of students = 50
Mean marks = 60
Total marks = 50 × 60 = 3000
Find the mean marks of both classes:
= Total marks / Total no. of students
= 3000 + 3000 / 100 + 50
= 6000 / 150
= 40
\therefore∴ The mean marks of two classes taken together is 40 (Option A).
Note:-
Sometimes average is asked instead of mean. Both are synonymous to each other.
Always add the all total at the last for final answer.
Answer:
I'm really sorry
Explanation:
i won't do it again
sorry Didi / behen