<u><em>Explanation</em></u>
5 students got 6 mark each, 4 students got 7 marks each, 7 students got 8 marks each, 10 students got 9 marks each and 4 students got 10 marks each.
(a) <u>Range is the difference of highest mark and lowest mark.</u> Here, the highest mark is 10 and lowest mark is 6.
So, the range of mark
(b) Total number of students in the group
(c) Mean is the <u>simple average.</u> So, for finding the Mean, we will divide the total marks obtained by all students by the total number of students.
Total marks obtained by all students
So, the Mean mark of the group
....................361 in ^3...................
Answer:
120
Step-by-step explanation:
The formula describes how many ways items can be chosen given total items. In this scenario, , and , thus:
This means that you can make 120 three-vegetable plates
For this problem, all you would need to do is plug in numbers for x and y into the calculator. However, none of the ordered pair is a solution to the equations. Unless.. I made a mistake.