4. Two mark exercise problems I

1. Ages of $15$ students in $8^{th}$ standard is $13$, $12$, $13$, $14$, $12$, $13$, $13$, $14$, $12$, $13$, $13$, $14$, $13$, $12$, $14$. Find the mean age of the students.

 

 

Mean age of the students $=$

 

2. Find the mean of the following data.

 

$5.1$, $4.8$, $4.3$, $4.5$, $5.1$, $4.7$, $4.5$, $5.2$, $5.4$, $5.8$, $4.3$, $5.6$, $5.2$, $5.5$.

 

 

Mean $=$ .