Which of the following statements is true about the followinginterval: Xbar +/- 1.96 S / sqrt(n)

Question 2 options:

1.The interval center is random, but its width is not.

2.The interval center is not random, but its width israndom.

3.The interval center is random, and its width is random aswell.

4.Neither the interval center nor its width is random.