Express the Sum in Sigma Notation $$- \frac { 1 } { 5 } + \frac { 2 } { 5 } - \frac { 3 } { 5 } + \frac { 4 } { 5 } - \frac { 5 } { 5 }$$

question 279

Multiple Choice

Express the sum in sigma notation.
- $$- \frac { 1 } { 5 } + \frac { 2 } { 5 } - \frac { 3 } { 5 } + \frac { 4 } { 5 } - \frac { 5 } { 5 }$$

• A) \(\sum _ { \mathrm { k } = 0 } ^ { 5 } ( - 1 ) ^ { \mathrm { k } - 1 } \frac { \mathrm { k } } { 5 }\)
• B) \(\sum _ { \mathrm { k } = 1 } ^ { 5 } ( - 1 ) ^ { \mathrm { k } + 1 } \frac { \mathrm { k } } { 5 }\)
• C) \(\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { \mathrm { k } } \frac { \mathrm { k } + 1 } { 5 }\)
• D) \(\sum _ { \mathrm { k } = 1 } ^ { 5 } ( - 1 ) ^ { \mathrm { k } } \frac { \mathrm { k } } { 5 }\)

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Definitions:

Forgery

The act of fraudulently making or altering a document with the intent to deceive.

Larceny

The act of taking and carrying away the personal property of another without the right to do so.

Defrauding

The act of obtaining something of value through deceit or trickery.

Bribery

The act of offering, giving, receiving, or soliciting something of value to influence official action or the discharge of a public duty.