Consider the formula s = \dfrac{p\cdot t}{d^2}s= d 2 p⋅t s, equals, start fraction, p, dot, t, divided by, d, squared, end fraction, where sss represents skill, ppp represents the amount of practice, ttt represents time and is measured in days, and ddd represents the number of distractions. select an appropriate measurement unit for skill. choose 1 choose 1