An Ice Cream Seller Wants to Predict Y = the Number

question 19

Multiple Choice

An ice cream seller wants to predict y = the number of ice creams sold when temperature (x) is 25 °C. Determine the types of variables.

• A) y is a response variable, x is an explanatory variable
• B) y is an explanatory variable, x is a response variable
• C) y is an independent variable, x is an explanatory variable
• D) y is an independent variable, x is a dependent variable
• E) y is a response variable, x is a dependent variable

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Definitions:

Utricle

A small, fluid-filled sac in the inner ear that detects changes in gravity and linear acceleration, playing a key role in balance.

Ossicles

Small bones in the middle ear (malleus, incus, stapes) that transmit sound vibrations to the inner ear.

Malleus

A small bone in the middle ear that transmits sound vibrations from the eardrum to the inner ear.

Presbycusis

Age-related hearing loss, gradually occurring as individuals get older.