00:01
Hi, i'm david and i'm here to help you answer your question.
00:03
In the question here, we're given the sample of the 12 consecutive monthly return for stock ipc.
00:10
Now let me go back to the question and check up be the dataset and put it on the top here.
00:15
And from the dataset here, the question asks you to find the sample standard division of the data.
00:23
Now to find the sample standard division, first of all, need to find the sample mean x bar.
00:27
It's just equal to the sum, the value by end.
00:29
Now it will pass the data into the calculator 1 .4 and then minus 1 .4, 2 .5, minus 0 .7, 0 .4, 2 .4, 1 .8, minus 0 .9, minus 0 .1 ,000 .6.
00:51
And then we have the x bar...