Can a human select truly random numbers if he/she chose to? It is known that humans are worse than computers at random number generation, and that even computer's random numbers are often imperfect and predictable.

What strategies could a human employ to generate truly random numbers from a given range, and how uniformly distributed will they really be?

P.S. One trick I use, when generating a number from 1-9, is to select a random large number, say 2349, then find its digital root (2+3+4+7 = 16, 1+6=7, so digital root is 7). I don't know how random it truly is, but it's definitely better than just instinctively selecting a number from 1 to 10.
One strategy for ranges that are powers of 2 is to split the range in half and flip a coin. If it's heads, the upper half is your new range. If it's tails, the lower half is your new range. Repeat until you have a single number. This gives you a truly random number.

Another strategy comes from George Marsaglia, on this Google Groups page: https://groups.google.com/forum/m/?hl=en#!msg/sci.math/6BIYd0cafQo/Ucipn_5T_TMJ

Choose a 2-digit number, say 23, your &quot;seed&quot;.
Form a new 2-digit number:
the 10's digit plus 6 times the units digit.
The example sequence is
23 --&gt; 20 --&gt; 02 --&gt; 12 --&gt; 13 --&gt; 19 --&gt; 55 --&gt; 35 --&gt; ...
and its period is the order of the multiplier, 6, in the group of residues relatively prime to the modulus, 10. (59 in this case).
The &quot;random digits&quot; are the units digits of the 2-digit numbers, ie, 3,0,2,2,3,9,5,...  the sequence mod 10.
The arithmetic is simple enough to carry out in your head.

I don't know what the distribution is, but the numbers look random, at least to me. You could also concatenate digits to create larger numbers. You could then get a pseudo-random number for any specified length of number (i.e. 2 digits, 3 digits, etc).

A similar question with many potential answers in the comments can be found at https://philosophy.stackexchange.com/questions/1961/are-people-capable-of-generating-a-random-number.