00:01
All right, so we are finding the z score for a backyard structure of 24 ,000.
00:04
So we would do x minus the mean divided by the standard deviation.
00:09
So our score here is 2400.
00:11
Our mean is 3 ,000.
00:14
And our standard deviation is 1 ,100.
00:19
So i'm going to subtract first and then divide.
00:23
So 2 ,400 minus 3 ,000, divided by 1 ,100.
00:34
Which is negative 0 .545 is where we'll stop there.
00:46
So that was part a.
00:49
It says to two decimal, so negative 0 .55.
00:53
The other one is 4 ,700 minus 3 ,000 divided by 1100...