<span>The Empirical Rule is used when data distribution is bell shaped, whereas Chebyshev's theorem is used for all distribution shapes</span>
Answer:
10
Step-by-step explanation:

You pass the free terms wich don't contain 'x' in the othe part of the equal with changed signe ans the same for the terms wich contain x.
Answer:
18
Step-by-step explanation:
There is a 150% increase.
Work is attached in the image provided.