00:01
Hey there, welcome to numerate.
00:04
So we are given a sample here of eight values.
00:08
We're asked to find the sample mean, standard deviation, and variance.
00:13
So let's find the sample mean first, we'll just note it as x bar.
00:19
The equation that we're working with here is the sum of x divided by the sample size.
00:28
So we have eight values, so it's going to be divided by eight.
00:31
So we're going to compute this, and we get a mean that equals around 23 .23 .23.
00:48
All right.
00:50
Now for our sample standard deviation, which is denoted as s, is the square root of the sum of x minus the mean 23 .2 squared divided by our.
01:13
Sample size minus 1...