Using the line of best fit, the amount of texts a 15-year old would send in a day is of 67.69.
What does the line of best fit gives?
It gives the expected number of texts a person of an age a would send in a day, according to the following function:
t = -1.63a + 92.14.
For a person that is 15 years old, we have that a = 15, hence the expected number is given by:
t = -1.63 x 15 + 92.14 = 67.69 texts.
More can be learned about line of best-fit at https://brainly.com/question/17261411
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