1 of 8 0-day streak

Identify the explanatory and response variables

Question 1 of 8

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Investigation 1: A study uses elevation (hundreds of metres) when examining how air pressure (hPa) depends on it

Investigation 2: A study examines how practice points depends on practice time (min)

Investigation 3: A study examines how heating energy use (MJ) depends on outdoor temperature (°C)

(a)1 mark

Identify the explanatory and response variables for investigation 1

elevation is the explanatory variable; air pressure is the response variable

air pressure is the explanatory variable; elevation is the response variable

(b)1 mark

Identify the explanatory and response variables for investigation 2

practice points is the explanatory variable; practice time is the response variable

practice time is the explanatory variable; practice points is the response variable

Identify the explanatory and response variables for investigation 3

heating energy use is the explanatory variable; outdoor temperature is the response variable

outdoor temperature is the explanatory variable; heating energy use is the response variable