A bunch of kids die and the capitol gets mad because Katniss wins the games with another person
B. A speech to show people the features of a new cell phone
Answer:
Sigma is the 18th letter of the Greek alphabet and is equivalent to our letter 'S'. In mathematics, the upper case sigma is used for the summation notation. The lower case sigma stands for standard deviation. If you notice, the two formulas that use these two symbols both start with the letter 's'.
It is a narrative poem which employs dialogue to characterize the speaker's thought, as well as the attitudes of his neighbors