4. 800 students are selected at random from a student body of 20,000. Each of the 800 students is given shots to prevent a certain type of flu. Of the 800 students, 600 did not get that strain of flu. We will estimate p from the sample. That makes p-hat the point estimate for p. We go through the same calculations. Find p-hat rounded to hundredth place. Find SE using the sample, and round to hundredth place. Find the p interval by using (p-hat + SE). p-hat SE P hat + SE The p interval: small to large
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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