1. The American black bear is one of 8 bear species in the world. It is the smallest North American bear and the most common bear species on the planet. In 1969 a long-term study of the population of the black bear in the Great Smoky Mountains National Park was initiated. One aspect of the study was to develop a model that could be used to predict a bear's weight. One variable thought to be related to weight is the length of the bear. Here is data on 12 American black bears. 141.0 141.0 150.0 166.0 length Weight 110 Length is in centimeters. Weight is in kilograms. Read the problem carefully in order to figure out the 139.0 138.0 139.0 120.3 149.0 151.5 129.5 150.0 60 90 60 85 100 95 85 155 140 105 110 predictor and the predicted. Don't get them mixed up. Copy your calculator results. a is rounded to tenth place and b is rounded to ten-thousandth place. Correlation coefficient rounded to ten- thousandth place. Coefficient of determination rounded to tenth percent. Regression equation Correlation coefficient Coefficient of determination
Angles in Circles
Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made perpendicular to the radius through its endpoint placed on the circle as well as the line drawn at right angles to a tangent across the point of contact when the circle passes through the center of the circle. The chord is a line segment with its endpoints on the circle. A secant line or secant is the infinite extension of the chord.
Arcs in Circles
A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.
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