The marks scored by 30 students in a Mathematics test are recorded in the table below: Scores (Mark) 0 1 2 3 4 5 No of students 4 3 7 8 6 2 What is the tota...

Answer Details

To find the total number of marks scored by the children, we need to multiply the number of students who scored each mark with the mark itself, and then add up all the products. For example, for the mark "0", 4 students scored it, so the product would be 0 x 4 = 0. For the mark "1", 3 students scored it, so the product would be 1 x 3 = 3. We do this for every mark and add up all the products to get the total number of marks scored by the children. So, the calculation would be: 0 x 4 + 1 x 3 + 2 x 7 + 3 x 8 + 4 x 6 + 5 x 2 = 0 + 3 + 14 + 24 + 24 + 10 = 75 Therefore, the total number of marks scored by the children is 75, which is option (D).