Raisins The following data represent the weight (in grams) of a box of raisins and the number of raisins in the box.
Weight (grams), w | Number of Raisins, N |
42.3 | 87 |
42.7 | 91 |
42.8 | 93 |
42.4 | 87 |
42.6 | 89 |
42.4 | 90 |
42.3 | 82 |
42.5 | 86 |
42.7 | 86 |
42.5 | 86 |
Source Jennifer Maxwell, student at Joliet Junior College
(a) Draw a scatter diagram of the data, treating weight as the independent variable. .
(b) What type of relation appears to exist between the weight of a box of raisins and the number of raisins? .
(c) Select two points and find a linear model that contains the points. .
(d) Graph the line on the scatter diagram drawn in part (b). .
(e) Use the linear model to predict the number of raisins in a box that weighs 42.5 grams. .
(f) Interpret the slope of the line found in part (c).
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