True or false: chebyshev's inequality applies to all distributions regardless of shape, but the empirical rule holds only for distributions that are bell shaped.

True.

Step-by-step explanation:

The empirical rule states that for a bell shaped distribution, nearly all of the data will fall within three standard deviations of the mean.

Chebyshev’s inequality says that at least of data from a sample will fall within standard deviations from the mean.

We have to remember that Chebyshev’s inequality has been proven mathematically for any distribution. But the empirical rule is a tool created for bell shaped distributions.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,