Question

The ages in years of 7 students are 12 , 18 , 9 , 11 , 7 , 13 , 7. Find the average age.​

Answer 1

Answer:

the average age is 8.14 years

Step-by-step explanation:

7 students are 12 , 18 , 9 , 11 , 7 , 13 , 7.

(12+ 18 + 9 +11 + 7+ 13 + 7)

=57

57/7=8.14

Answer 2

Answer:

The average age of seven students is $11$ years

Step-by-step explanation:

average age is total age divided by number of students.

that is, $average\ age\ =(12+18+9+11+7+13+7)/7$

                                $\frac{77}{7}=11$.

thank you