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A trade in securities exchange

Question

A trade in securities exchange:brings the buyer and seller together.is executed by the

dealer.

is arranged by an investment banker.

is executed by the Securities Exchange Commission

is guaranteed by the central bank

 
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The Wind Mountain excavation site in New Mexico

Question

The Wind Mountain excavation site in New Mexico

is an important archaeological location of the ancient Native American Anasazi culture. The following data represent depths (in cm) below surface grade at which significant artifacts were discovered at this site (Reference: A.I. Woosley and A.J. McIntyre, Mimbres Mogollon Archaeology, University of New Mexico Press).

85 45 75 60 90 90 115 30 55 58 78 120 80 65 65 140 65 50 30 125 75 137 80 120 15 45 70 65 60 45 95 70 70 28 40 125 105 75 80 70

90 68 73 75 55 70 95 65 200 75 15 90 46 33 100 65 60 55 85 50 10 68 99 145 45 75 45 95 85 65 65 52 82

For this problem, use seven classes.

(a) Find the class width.

(b) Make a frequency table showing class limits, class boundaries, midpoints, frequencies, relative frequencies, and cumulative frequencies. (Give relative frequencies to 4 decimal places.)

(c) Draw a histogram.

(d) Draw a relative-frequency histogram.

(e) Categorize the basic distribution shape.

Can someone show me step-by-step through this question? I had some of the basics down but I need help putting it all together.

 
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When a driver decides to stop a car, it takes time first for the driver to react

Question

When a driver decides to stop a car, it takes time first for the driver to react

and put a foot on the brake, and then it takes additional time for the car to slow down. The total distance traveled during this period of time is called the stopping distance of the car. For some cars, the stopping distance d, in feet, is given by the equation d = 0.05r2 + 1.75r,

 where r is the speed of the car in miles per hour.

 
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A cross-country course is in the shape of a parallelogram

Question

A cross-country course is in the shape of a parallelogram with a base of

length 6 mi and a side of length 2 mi. What is the total length of the cross-country course?

 
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