How do I call a specific row in a table of data

I have a table of data and there is 5 rows and 5 columns, Im wondering what is the way to correctly call one row of the table and then find the average of each row, and then square root the average time of each row.

here what I mean: I need to use a command to call out an indivual row, then I need to find the average of the row's value. then find the squared average of those averaged values.

here is the table for reference:

heres the table imported into mat lab for reference:

Answer 1

[Chunru]

% dummy data
x = randn(7, 5)

x = 7×5

0.6502 -1.3941 2.3902 -0.1460 -1.9208 1.9957 -0.6656 -0.4266 0.7290 0.5461 1.2666 0.4532 1.0042 0.0764 0.8513 0.9760 -0.7714 -0.8409 0.3690 -1.3566 -0.5684 -1.0316 0.8156 0.4102 0.3727 -0.1912 -1.3393 -0.9203 0.6698 1.1634 -0.9529 0.2073 -1.4404 0.5985 -0.1304

% In your data, 1st column is distance.  You should ignore it for
% averaging.
xave = mean(x(:, 2:end), 2)  % select all rows and 2nd to last columns, then average along rows (2)

xave = 7×1

-0.2677 0.0457 0.5963 -0.6500 0.1417 -0.1066 -0.1912

% squared average of average (not sure your exact meaning here)
y = mean(xave).^2

y = 0.0038

[JMK]

thank you for the assitance

[JMK]

but what i meant by this is a need to find the square root of the averages, I believe thats what it is asking