Why is it important that the evidence produced by scientific investigations be replicable by others?

If an investigation is replicable, somebody else can use it. In order for others to achieve the same results scientists also have to be able to collect the same data.

well we can't tell you because we cant see the time give a screen shot or something.

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /