A Supplier Delivers an Order for 20 Electric Toothbrushes to a Store

question 41

Multiple Choice

A supplier delivers an order for 20 electric toothbrushes to a store. By accident,three of the electric toothbrushes are defective. What is the probability that the first two electric toothbrushes sold are defective?

• A)3/20 or 0.15
• B)3/17 or 0.176
• C)1/4 or 0.25
• D)6/380 or 0.01579

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Definitions:

Integral Proteins

Proteins that are permanently attached to the membrane, playing critical roles in cell signaling, structure, and transport.

Lipid Bilayer

A double-layered structure formed by lipids that constitutes the main component of all cell membranes, providing barrier and structural integrity to cells.

Hydrophobic Portions

Regions of a molecule that are repelled by water and tend to be nonpolar, often found in lipids and proteins.

Peripheral Membrane Proteins

Proteins that are attached either temporarily or permanently to the outer or inner surface of the cellular membrane, often involved in signaling or structural roles.