A Box Contains 3 Red Balls, 5 White Balls, and 3

question 160

Multiple Choice

A box contains 3 red balls, 5 white balls, and 3 black balls. Two balls are drawn at random from the box with replacement of the first before the second is drawn.What is the probability of getting a red R ball on the first draw and a white W ball on the second? ​

• A) Pr(R first ∩ W second) =
• B) Pr(R first ∩ W second) =
• C) Pr(R first ∩ W second) =
• D) Pr(R first ∩ W second) =
• E) Pr(R first ∩ W second) =

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Definitions:

Central Airways

The major air passages leading from the trachea to the lungs, facilitating the movement of air in and out of the lungs.

Pleural Effusion

The accumulation of excess fluid between the layers of the pleura outside the lungs.

Acapella Device

A handheld device that combines vibration with resistance when you exhale, helping to clear mucus from the airways.

Chronic Bronchitis

A long-term inflammation of the bronchial tubes that results in persistent coughing and production of sputum.