A Random Sample of Federal Income Tax Returns Is Selected $0 \leqslant 3000,3000 \leqslant 6000,6000 \leqslant 9000$

question 41

Essay

A random sample of federal income tax returns is selected from the 2006 returns and a frequency histogram is constructed for the amount of federal income tax paid in 2006. The classes used to construct the histogram are $0 \leqslant 3000,3000 \leqslant 6000,6000 \leqslant 9000$ , and so on. What do you think the shape of the histogram will be? Explain your thinking.

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Definitions:

Ligand

A molecule that binds to a specific site in a receptor or other protein.

Receptor

(1) In cell biology, a molecule on the surface of a

Clathrin

A protein that plays a critical role in the formation of coated vesicles, involved in the transport of molecules within cells.

Amphipathic

Refers to molecules having both hydrophobic (water-repelling) and hydrophilic (water-attracting) parts, enabling interactions with both water and lipids.