f(x, y) = x, 0≤x≤ y ≤ 10 500 Given E(Y) = 7.5 1. Find the covariance between X and Y. Explain why the sign of the covariance makes sense in the context of the problem.

Q: Let f(x) = V9x – 10 . Determine f-(x). f-(x)%3D

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Q: Suppose the point (5, a) lies on y = f(x), the point (b, c) lies on y = g(x) and the point (2, -8)…

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Q: Find 7(1). 1 L (s + 7)3) e f(t) =

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Q: Let g(t) -t+ Vt and h(t) = 9t + 4. Find the following. %3D g(h(5)) = h(g(4)) - eSC 14

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Q: A) To the nearest inch, estimate the height of the maple tree in 2011.  inches B) Use the equation…

A: y = 9.44x + 84.182

Q: E(X)=5 and E(Y)=8 What is E(X+4Y)?

A: From the properties of expectation:-EaX+bY=aEX+bEY

Q: Suppose f(x) = v9 + x – Vx – 6. Find all x-values satisfying the equation f (x) = 3. %3D

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Q: At which value in the domain does ffx) = 0? 10 8. f(x} 4- 2 4 -3 -2 2h 3 4 X -6 -8 -10 O x=-3 X= 0 X…

A: We can find the required answer from the graph as below.

Q: let x= et then by the chain rule d3x/dx3 equals

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Q: Exercises (1.9) Find the domain and the range for cach of the following functions: (1) y = (2) y =…

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Q: Suppose f is a linear function and that f (2)=7 and f (5)=7.1.  Then the slope of is postive   true…

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Q: Most Americans (58% kindergarten through surveyed about whet the binomial distribu standard…

A: Hey, since there are multiple questions posted, we will answer first three question. If you want any…

Q: If f³ f (x) dx = 6 and ſ ƒ(x)dx = 4, then ſ5 (3 + 2ƒ(x))dx : = 35 10 23 20

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Q: Calculate the 5-unit moving average of the given function. (x) = 2x 3 a. 6 7«) = 25 (s - x) + Ob. 2…

A: To calculate the 5-unit moving average of the below function.

Q: For a highway, the car's speed has a uniform distribution [50,90]. Cars are stopped if speed X is…

A: It was stated that the car's speed has a uniform distribution [50,90]. Cars are stopped if speed X…

Q: Let f(x) = x+9 and let g(x) = /x. Find the value of (f+g)(x) when x (a) 2 (b) 7 = 4. %3D (c) 9 (d) 5…

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Q: (1 point) Let f(z) = r² – 6x and g(x) = x-6. Evaluate the following: %3D %3D 1. (fo g)(z)= 2. (go…

A: Consider the functions f(x) = x2 - 6x and g(x) = x - 6 If f(x) and g(x) are the two functions then…

Q: The range of the function f(x, y) = 4 – V4 - x² - y is [2, co) (-00, 2] (-0, 4] [2, 4] [4, c0)

A: Range of a function:The set of all possible values of y after substituting all the possible values…

Q: 2. Given that f"(x)= 3 ;f'(1) = 6 ;f(1) = 0 . Find the function f(x).

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Q: 1. (2 We would like to fit a line of the form y = ao + air to the points (x1, y₁), (2, 2) ... (an,…

A: The equation of the line is We have to show that the coefficient corresponding to the line best fits…

Q: 3 d²y If the functions are x = e-t and y = t+t + 1. Determine its dx2

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Q: Compute f(x) for the data below: (0, 1), (1.25,3) and (3.25,7)

A: For the given data,since the difference between the x values are not same,we are going to find the…

Q: Differentiate the function. 2w2 – 6w + 4 P(w) =

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Q: Drawthegraphofy = -e(x- 2).

A: Given- y=-ex-2 To draw- The graph of the above expression.

Q: Given f (x)= 2x +1 and g (s3)=x*+2x-1, find (I+g) (3).

A: (f+g)(x) = x2+4xexplanation is given below

Q: 39. Let f(x) = 2x3 - 4. Find a function y = g(x) so that (f o g)(x) =x+2.

A: We use the definition of composition of functions to find y= g(x).