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The Hill of Tara in Ireland is a place of great archaeological importance. This region has been occupied by people for more than 4,000 years. Geomagnetic surveys detect subsurface anomalies in the earth's magnetic field. These surveys have led to many significant archaeological discoveries. After collecting data, the next step is to begin a statistical study. The following data measure magnetic susceptibility (centimeter-gram-second cross product 10-6) on two of the main grids of the Hill of Tara (Reference: Tara: An Archaeological Survey by Conor Newman, Royal Irish Academy, Dublin).Grid E: x variable7.85 8.59 13.77 33.01 33.75 31.16 29.687.85 30.05 11.55 33.38 33.75 18.58 19.32Grid H: y variable24.10 30.21 55.12 52.30 56.06 29.74 21.7542.43 37.26 33.97 38.20 17.05 48.07 18.46(a) Compute Σx, Σx2, Σy, Σy2. (Enter your answers to 2 decimal places.)Σx Σx2 Σy Σy2 (b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x and for y. (Enter your answers to 2 decimal places.)x yx bar s2 s
1. Write two ways of each algebraic expression in words. (a) m + 7 (b) z - 11 (c) 5 × a (d) b ÷ 9
A volcano fills the volume between the graphs z=0 and z=1/(x^2+y^2)^23 , and outside the cylinder x^2+y^2=1. Find the volume of this volcano.
Gavin and Seiji both worked hard over the summer. Together, they earned a total of $425. Gavin earned $25 more than Seiji. How much did each of them earn?
A long distance trucker traveled 208 miles in one direction during a snowstorm. The return trip in rainy weather was accomplished at double the speed and took four hours less time. Find the speed going.
Consider a seven-game world series between team A and B, where for each game, what is the most likely number of games to be played in the series for p=0.6?
Assuming that there is no cost of entering the sweepstakes, find the expected value of the amount won for one entry.
1. what is a sequence? provide an example with your explanation.2. what is a sequence for? give an example of a
The management of Cecilia First Bank was concerned about the potential loss that might occur in the even of a physical catastrophe such as a power failure or fire.
The circumference of a sphere was measured to be 86000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area.
question prove if triangle abc and triangle def are two right triangles with right angles at the vertices c and f
question a square and a rectangle have the same area of 36cm2. what is thelength of the side of the square? if the
Approximately one-half of all glass bottles distributed will be recycled each yesr, A beverage company distributes 310,000 bottles. The number still in use after t years is given by the function N(t) = 310,000(1/2)^t
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