The average lengths $L$ of cellular phone calls in minutes from 1999 to 2004 are shown in the table below.

Use the regression feature of a graphing utility to find a linear model for the data. Let $t$ represent the year, with $t = 9$ corresponding to 1999 . Use the model to predict the average lengths of cellular phone calls for the year 2015 . Round your answer to two decimal places.
A) $4.37$ minutes
B) $8.74$ minutes
C) $5.37$ minutes
D) $3.37$ minutes
E) $2.19$ minutes

Question

The average lengths $L$ of cellular phone calls in minutes from 1999 to 2004 are shown in the table below.

Use the regression feature of a graphing utility to find a linear model for the data. Let $t$ represent the year, with $t = 9$ corresponding to 1999 . Use the model to predict the average lengths of cellular phone calls for the year 2015 . Round your answer to two decimal places.
A) $4.37$ minutes 
B) $8.74$ minutes 
C) $5.37$ minutes 
D) $3.37$ minutes 
E) $2.19$ minutes

Quizplus · Accepted Answer

The Answer of The average lengths $L$ of cellular phone calls in minutes from 1999 to 2004 are shown in the table below.

Use the regression feature of a graphing utility to find a linear model for the data. Let $t$ represent the year, with $t = 9$ corresponding to 1999 . Use the model to predict the average lengths of cellular phone calls for the year 2015 . Round your answer to two decimal places.
A) $4.37$ minutes 
B) $8.74$ minutes 
C) $5.37$ minutes 
D) $3.37$ minutes 
E) $2.19$ minutes

The Average Lengths LLL Of Cellular Phone Calls in Minutes from 1999 to 2004

The Average Lengths $L$ Of Cellular Phone Calls in Minutes from 1999 to 2004