00:01
To solve this problem, we need to use the concept of probability distribution and find the appropriate value of l.
00:10
Let's assume that x represents the load in pounds per linear foot on the b.
00:23
X represents the load per linear foot on the b.
00:31
And this load is uniform distribution between 200 and 230 pounds.
00:43
So, f of x is, x is a continuous uniform distribution, so its pdf is 1 by b minus a.
00:53
So, 230 minus 200, which is equal to 1 by 30.
01:00
200 less than, 230.
01:07
To find the value of l such that the probability that the beam load exceeds at least only 0 .55.
01:20
So, we need to find the x value corresponds to this probability...