When the Price of a Bicycle Falls from $220 to $180

question 25

Multiple Choice

When the price of a bicycle falls from $220 to $180 and other things remain the same, I. the quantity of bicycles demanded increases from 150 to 250 an hour.
II. the quantity of skateboards demanded decreases from 125 to 75 an hour.
III. the quantity of bicycle helmets demanded increases from 170 to 230 an hour.
Bicycle helmets and bicycles are ________ because a fall in the price of a bicycle brings ________ in the quantity demanded of bicycle helmets. The cross elasticity of demand for bicycle helmets with respect to bicycles is ________.

• A)complements; an increase; -1.5
• B)substitutes; a decrease; 1.5
• C)substitutes; an increase; -0.67
• D)complements; a decrease; 0.67
• E)complements; an increase; 1.5

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Definitions:

0 ≤ P ≤ 1

A mathematical expression indicating that the value of P (probability) ranges from 0 to 1, inclusive.

Outcome

An outcome is the result or consequence of an action, experiment, or event, often used in the context of probabilities and statistical experiments.

Classical Approach

A methodological approach in statistics that relies on theoretical probability distributions and assumptions for hypothesis testing and estimation.

Assigning Probabilities

The process of determining the likelihood of various outcomes in an experiment or situation.