What is the overall percentage of marks obtained by ‘M’ in all the subjects (rounded off to two digits after decimal)?

Q. Directions for the following 5 (Five) items:
Examine the information given in the following table and answer the items that follow.
Percentage of marks obtained by 7 students in 6 subjects (maximum marks for each subject is shown in bracket)




Question 57. Approximately what is the overall percentage of marks obtained by the ‘T’ in all the subjects?

Q.

The marks obtained by 10 students in a class are as follows, what is the probability that the average mark obtained by a student in the class is less than 70?(in decimals)

$\begin{array}{ccccc}\text{Student}& \text{English}& \text{Hindi}& \text{Mathematics}& \text{Science}\\ 1& 87& 78& 90& 89\\ 2& 90& 68& 76& 78\\ 3& 79& 68& 59& 61\\ 4& 71& 67& 79& 57\\ 5& 69& 91& 86& 76\\ 6& 87& 85& 67& 60\\ 7& 78& 90& 89& 93\\ 8& 92& 76& 88& 90\\ 9& 77& 81& 85& 86\\ 10& 86& 75& 93& 89\end{array}$

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Q. Following are the marks obtained by 20 students in statistics. Find out coefficient of variation of the marks.

62	85	73	81	74	58	66	72	54	84
65	50	83	62	85	52	80	86	71	75

Q. The following table gives the marks obtained (out of 100) by seven students in six different subjects in an examination. Study the table and answer the questions based on it. The numbers in the brackets give the maximum marks in each subject.
Q. What is the overall percentage of Ganim?

Q. The following table gives the marks obtained (out of 100) by seven students in six different subjects in an examination. Study the table and answer the questions based on it. The numbers in the brackets give the maximum marks in each subject.
Q. What are the average marks obtained by all the seven students in Maths? (rounded off to two decimal places?