That is incoherent, the normal distribution is a continuous distribution.

If what you mean is that in a sample of 13 there is at least one between 5' 5.5", and 5' 6.5", and at least one between 5' 6.5", and 5' 7.5" ... and at least one between 5' 11.5", and 6' 0.5" that would be a different matter (and a different question).

CB