Use the REGRESSION Feature on a Graphing Calculator

question 19

Multiple Choice

Use the REGRESSION feature on a graphing calculator.
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer students.The results are recorded in the table below. Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab.

• A)y = 1.86 + 88.6x
• B)y = 0.930 + 44.3x
• C)y = 44.3 + 0.930x
• D)y = 88.6 - 1.86x

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Definitions:

Population

The entire group of individuals or observations about which the researcher wants to make conclusions.

Sample

A subset of data or observations taken from a larger population, used for statistical analysis.

Quantitative Data

Numerical information that can be measured and quantified, allowing for mathematical calculations and statistical analysis.

Interval

A range of values within which a measurement or variable can fall, often used in statistics to estimate uncertainty.