Cell phone production engineers have noticed that among a group of 138 customers aged 14-23 who send
more text messages tend to use a higher percentage of
their phone's memory.
What are the explanatory variable and response
variable for this relationship?
ERRE
O Explanatory variable: age of customer
Response variable: percentage of phone memory
used
O Explanatory variable: percentage of phone memory
used
Response variable: age of customer
O Explanatory variable: number of text messages sent
Response variable: percentage of phone memory
used
O Explanatory variable: percentage of phone memory
used
Response variable: number of text messages sent
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