1. The data show the time intervals after an eruption (to the next eruption) of a certain geyser. Find the regression equation, letting the first variable be the independent (x) variable.
Height (ft) 115 133 137 140 99 112 108 126
Interval after 75 85 94 85 66 88 68 82
What is the regression equation?
2. The data show systolic and diastolic blood pressure of certain people. Find the regression equation, letting the systolic reading be the independent (x) variable.
Systolic 139 118 145 133 141 138 139 136
Diastolic 101 61 82 74 104 79 74 74
What is the regression equation?
3. Chest size 50 54 44 54 40 36
Weight LBS 279 339 219 292 201 116
Let chest size the independent variable (x).
What is the regression equation?
4. List Price (Mil) 1.6 3.7 1.6 1.7 2.3 1.6
Selling price 1.9 3.4 1.8 2 2.8 1.3
What is the regression equation?
Let list price be (x) variable
What is the best predicted selling price of a home having a list price of 3 million?
5. Find the best predicted weight of a seal if the overhead width measured from a photograph is 2.4 cm. Let overhead width be the predictor (x) variable.
Overhead width 7.9 7.8 9.1 9.5 9.6 9.4
Weight (kg) 152 178 226 215 241 240
What is the regression equation?