Evaluate each sum for and (a) (b) (c) (d) 5 i2 xi xi1 5 i1 2xi x 2 i 5 i1 1 xi 1 5

Chapter 4, Problem 24

(choose chapter or problem)

Evaluate each sum for \(x_{1}=2\), \(x_{2}=-1\), \(x_{3}=5\), \(x_{4}=3\), and \(x_{5}=7\).

(a) \(\frac{1}{5} \sum_{i=1}^{5} x_{i}\)

(b) \(\sum_{i=1}^{5} \frac{1}{x_{i}}\)

(c) \(\sum_{i=1}^{5}\left(2 x_{i}-x_{i}^{2}\right)\)

(d) \(\sum_{i=2}^{5}\left(x_{i}-x_{i}-1\right)\)

Text Transcription:

x_1=2

x_2=-1

x_3=5

x_4=3

x_5=7

1/5 sum_i=1^5 x_i

sum_i=1^5 1/x_i

sum_i=1^5(2x_i-x_i^2)

sum_i=2^5(x_i-x_i-1)