4. (a) An experiment was carried out to determine the relationship between length and resistance of a wire, the results are given below: Observation number 1 2 3 4 5 Length (m) 0.1 0.21 0.35 0.48 0.52 Resistance (2) 1.1 2.2 3.1 4.5 5.0 Table 1: Results from an experiment conducted to investigate the relationship between length and resistance of wire. Use simple linear regression to determine the equation for your line of best fit through the data, letting the wire length be the independent variable and resistance be the dependent. Approximate your answers to 3dp. (b) Determine the R2 value for your model and comment on what information this gives about your model. Approximate your answer to 3 dp. (c) Use the model that you fitted to your data above to predict the resistance of piece of wire, 70 cm in length.
4. (a) An experiment was carried out to determine the relationship between length and resistance of a wire, the results are given below: Observation number 1 2 3 4 5 Length (m) 0.1 0.21 0.35 0.48 0.52 Resistance (2) 1.1 2.2 3.1 4.5 5.0 Table 1: Results from an experiment conducted to investigate the relationship between length and resistance of wire. Use simple linear regression to determine the equation for your line of best fit through the data, letting the wire length be the independent variable and resistance be the dependent. Approximate your answers to 3dp. (b) Determine the R2 value for your model and comment on what information this gives about your model. Approximate your answer to 3 dp. (c) Use the model that you fitted to your data above to predict the resistance of piece of wire, 70 cm in length.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...
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