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A data set with 7 observations yielded the following. Use the simple linear regression model.
∑X =21.57∑X2 =68.31∑Y = 188.9∑Y2 =5,140.23∑XY =590.83
Calculate the Correlation coefficient, Coefficient of determination and SSE, and the Standard Error of Estimate.
If a person is 5 feet 4 inches tall, what effect does a 8% increase in weight have on S?
An army cadet is involved in a compass exercise. He leaves point O and walks 50m due west to point A. He then walks 80m due north to point B and finally 60m on a bearing of 320 deg to point C.
plane is flying at an altitude of 32,000 feet. The distance between the plane and a radio tower on the ground is 50,000 feet. What is the angle of depression between the plane and radio tower (round to 1 decimal place)?
An investor buys 200 shares of GDT at a price of $63.90 per share, pays a 2 percent commission on the purchase, and sells the 200 shares a year later for $64.00 per share with a 2 percent commission on the sale. What is the total cost of the purch..
Find how many square inches of mat board will be visible.
A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal ..
A formula is derived for the n-th derivative of a function that is a product of two other functions, f(x)=u(x).v(x). This formula is used to write down the n-th derivative of f(x) = e^x/(1 − x).
At noon, ship A is 60 km west of ship B. Ship A is sailing south at 15 km/h and ship B is sailing north at 5 km/h. How fast is the distance between the ships changing at 4:00 PM? (Round your answer to one decimal place.)
Application of matrices in real word problems -Five neighborhoods ( NB ) all want to raise money for a playground for their kids.
off with an initial velocity of u (at km/hr) and accelerates at a steady rate (a = km/hr2) for a time of t hours. Using the ‘area under the curve' method, derive and explain the equation to calculate the distance travelled: Distance travelled, s =..
A man 6 feet tall walks at a rate of 5 feet per second away from a light that is 15 feet above ground . When he is 10 feet from the base of the light,
A man in rowboat at point P, 150km from the shore, wishes to reach a point B, 600 km down shore, in the shortest amount of time. Where should he land if he can row at 4km/hr and walk at 7km/hr?
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