uc133953
Answered

Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Keiko surveyed people with cell phones.
Age in years=a
Texts they send per day=t
He drew a best-fit line and determined its equation.

Student
Keiko
Trend Line
t -1.63a + 92.14

Evaluate how many texts a 15 year old would send each day according to Keiko's trend line equation.

Sagot :

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

#SPJ1

Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.