8. Lęt-a = 5, x, = 6, x, = 7, Xg = 8, x4 = 10, xg = 11, y, = 3, y2 = 5, y, = 6, y, = 14, and Ys = 12. Find the following: %3D %3D %3D (a) Ex, (b) Ex,Y, (c) E(x, +ay,) (0) Σ (e) 2 a (1) E, 2(Y* - 3) (g) E(X - x)

8. Lęt-a = 5, x, = 6, x, = 7, Xg = 8, x4 = 10, xg = 11, y, = 3, y2 = 5, y, = 6, y, = 14, and Ys = 12. Find the following: %3D %3D %3D (a) Ex, (b) Ex,Y, (c) E(x, +ay,) (0) Σ (e) 2 a (1) E, 2(Y* - 3) (g) E(X - x)

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...

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Concept explainers

Rate of Change

The relation between two quantities which displays how much greater one quantity is than another is called ratio.

Slope

The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as:

Question

Could you help me solve and understand d-f?

8. Lęt-a = 5, x, = 6, x, = 7, Xg = 8, x4 = 10, xg = 11, y, = 3, y2 = 5, y, = 6, y, = 14, and
Ys = 12. Find the following:
%3D
%3D
%3D
(a) Ex,
(b) Ex,Y,
(c) E(x, +ay,)
(0) Σ
(e) 2 a
(1) E, 2(Y* - 3)
(g) E(X - x)

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