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 large retailer wants to estimate the proportion of Hispanic customers in a particular state. How large a sample size (of the retailer's customers) do you need to estimate this proportion to within 0.04 accuracy and with 99% confidence? Assume there is no planning value for p* available. The sample size required is:

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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.