00:01
Hello everyone, in this problem we are given with the values of xa which is equal to 13 plus or minus 1 and xb to be equal to 15 plus or minus 1.
00:15
Sorry, of the so it is of the two students measure which measures say is the same quantity x.
00:23
So, in the first part of the equation we need to find the discrepancy which is of xa minus xb assuming all the errors are independent and random and then we need to find its uncertainty.
00:36
So, first we find the discrepancy.
00:38
So, discrepancy will be for xa minus xb now adding 1 together.
00:44
So, it will be 14 minus 16.
00:47
So, its value will be equal to minus 2 and subtracting 1 in xa and xb.
00:53
So, we get here it is minus.
00:59
So, it will be 12 minus 14 and its value is minus 2...