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Read the following description of a data set. $\newline$ A software developer is looking for ways to predict how many bugs will appear in future projects. She used a bug-tracking database to analyze several recent projects.From the database, she recorded the number of lines of code for each project, $x$ . She also looked up the number of bugs that had been found in each project's code, $y$ .The least squares regression line of this data set is: $y = 0.008x + 394.816$ $\newline$ Complete the following sentence: $\newline$ For each additional line of code, the least squares regression line predicts ___ more bugs would be found in that project.

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Interpret regression lines

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Q. Read the following description of a data set.

\newline

A software developer is looking for ways to predict how many bugs will appear in future projects. She used a bug-tracking database to analyze several recent projects.From the database, she recorded the number of lines of code for each project,

x

. She also looked up the number of bugs that had been found in each project's code,

y

.The least squares regression line of this data set is:

y = 0.008x + 394.816

\newline

Complete the following sentence:

\newline

For each additional line of code, the least squares regression line predicts ___ more bugs would be found in that project.

Identify slope: Identify the slope of the least squares regression line from the given equation $y = 0.008x + 394.816$ . The slope is the coefficient of $x$ , which in this case is $0.008$ .
Interpret slope: Interpret the slope of the regression line. The slope of $0.008$ indicates that for each additional line of code, the number of bugs predicted to be found increases by $0.008$ .

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y = 0.886x - 23.764

Complete the following sentence: The least squares regression line predicts that if a person is one year older, they will be able to name

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\frac{30}{60} a+\frac{10}{60} b=24

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\frac{60}{30} a+\frac{60}{10} b=24

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170-20 c=5

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170+20 c=5

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170-15 c=5

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170+15 c=5

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(A) New Mexico residents

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(B) Albuquerque, New Mexico residents

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(A) Survey every fifth student to enter the school library.

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(B) Survey every fifth student to arrive at school one morning.

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(C) Survey every fifth senior to arrive at school one morning.

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2.5 \%

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(B) Each year, an increasing number of people leave Littleroot Town.

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70 \%

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2 \mathrm{~kg}

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