Online use: 1 = uses online banking; 0= does not use online banking. ÞAge buckets are as follows: 1 = less than 15 years; 2 = 15-24 years; 3 = 25-34 years; 4 = 35-44 years; 5 = 45-54 years; 6 = 55-64 years; 7 = 65 years and older. CIncome buckets are as follows: 1 = less than $15,000; 2 = $15,000-$19,999; 3 = $20,000-$29,999; 4 = $30,000-$39,999; 5 = $40,000- $49,999; 6 = $50,000-$74,999; 7 = $75,000-$99,999; 8 = $100,000-$124,999; 9 = $125,000 and more. A market research firm conducts telephone surveys and the historical population proportion response rate (Hint: the population proportion (parameter) is KNOWN for this problem) for surveys is known to be 0.43 (i.e., the population response rate parameter p = 0.43 is known). Assume the firm surveys a total of 500 customers during a project. What is the probability that BETWEEN 200 and 225 (out of 500 surveyed) will respond to the survey?
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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