In a Certain Distribution, the Mean Is 50 with a Standard

Multiple Choice

In a certain distribution, the mean is 50 with a standard deviation of 6 . Use Chebyshev's theorem to tell the probabilitythat a number lies in the following interval. Round your results to the nearest whole percent.
-Between 35 and 65

A) At least $86 \%$
B) At least $84 \%$
C) At least $80 \%$
D) At least $89 \%$