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.
-Less than 20 or more than 80

A) At most $4 \%$
B) At most $6 \%$
C) At most $2 \%$
D) At most $1 \%$