Is a continuous Uniform distribution appropriate for the following situations? If so, state which variable is uniformly distributed.

a) A manufacturer of cells for solar modules ordered some germanium, an essential element in one of the layers on the solar cell. The supplier said, “It will be delivered sometime in the next three weeks. I can’t be more precise than that.”

b) We have installed 500 solar panels at a solar farm. Any one of them is as likely to fail as any other.