Yeah, it can also be higher. Or lower. Or bad PRNG can give the same number every time. Flipping a biased coin can also produce bad randomness. I'm not going to

Yeah, it can also be higher. Or lower. Or bad PRNG can give the same number every time. Flipping a biased coin can also produce bad randomness. I'm not going to mention every edge case in my comment ;-) Computers are trying not to produce results different from fair coin flips.