In a Shop There Are 25 Customers, 20 of Whom

question 5

Multiple Choice

In a shop there are 25 customers, 20 of whom will make a purchase. If three customers are selected,
One at a time, at random, what is the probability that all will make a purchase?

• A)0.5876
• B)0.4957
• C)0.6160
• D)0.5069

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Definitions:

Increased Blood Flow

The augmentation of blood volume moving through blood vessels in a specific area of the body, often in response to a need for increased oxygen and nutrient supply.

Innate Immunity

The initial protective barrier in the immune system, made up of physical, chemical, and cellular mechanisms against pathogens, which exist naturally from birth.

Capillaries

Tiny blood vessels that connect arteries and veins, facilitating the exchange of water, oxygen, carbon dioxide, and other substances between blood and tissues.

Arterioles

Small branches of arteries leading into capillaries, responsible for controlling blood flow and pressure.