Question

12. Marks obtained by 10 students are 23, 25, 37, 36, 27, 28, 29, 34, 36, 38. The , , average marks are A) 30 B) 30.3 C) 31 D) 31.3​

Answer 1

Answer:

Option D is a correct choice.

Step-by-step explanation:

To find -

Average marks obtained by 10 students.

Solution-

Average means to the number of students.

Average marks obtained by students= $\frac{sum of all marks}{number of students}$

Average marks obtained by students =$\frac{23+25+37+36+27+28+29+34+36+38}{10}$

Average marks obtained by students =$\frac{313}{10}$

Average marks obtained by students = $31.3$

Average marks obtained by students are 31.3

Option D is a correct choice.