According to Chebyshev's theorem, at least what proportion of the data will be within t ko for each value of k? a.k= 3 b.k= 3.5 (Round your answer to 2 decimal places, e.g.,0.12.) (Round your answer to 2 decimal places, eg,0.12.) (Round your answer to 3 decimal places, e.g.,0.123.) ck-2.6 d.k= 3.2 (Round your answer to 3 decimal places, e.g. 0.123.)