Tchebysheff's Theorem

2 Activities

Tchebysheff’s Theorem: Which of the following is a correct statement?
1−1(1.25)2=0.361-\frac{1}{\left(1.25\right)^2}=0.361−(1.25)21​=0.36

"Choice of major is skewed, so we should apply Tchebysheff’s Theorem instead of using the normal distribution."

"Tchebysheff’s Theorem applies to discrete random variables."

"At most 36% of the data will lie within 1.25 standard deviations of the mean."

None of the above.

I don't know

You are given that:
1−1t2=0.65\bm 1\bm-\frac{\bm 1}{\bf t^2}\bm =\bm0.\bm6\bm51−t21​=0.65
Fill in the blanks: