observation. 2. The mean height of 10 students is \( 151.8 \mathrm { cm } . \) Two more students of heights \( 157.6 \mathrm { cm } \) and \( 154.4 \mathrm { cm } \) join the group. What is the new mean height?

The mean height of group of 8 students is 152 cm .Two more students of heights 143 and 156 cm join the group.The new mean height of the group is

The mean height of 10 students is 150 cm.
Which of these heights of the students is more than the mean height?

The heights of $10$ students were measured in cm and the results are as follows :
$147,139,135,136,149,166,152,163,155,144$
(i) What is the range of the data?
(ii) What is the mean height of the students?
(iii) How many students are there whose height is more than the mean height?

The height of 7 students are listed.


The mean height of the students before and after increasing the height by 2 cm is

What is the mean height of a students of $1400,147,145,155,160,150,144,148,152$.