consider the sequence 1,-2,3,-4,5,6.....what is the average of the first 200 terms of the sequence?

• ans is -1/2 , it is because suppose n=2 => avg is (1+-2)/2= -1/2, when n=4 => avg is -1/2 , similarly for n=200 avg will be -1/2.
• 8 years agoHelpfull: Yes(14) No(1)
• asnwer is -0.5
• 8 years agoHelpfull: Yes(6) No(5)
• -1/2.... as -100/200
• 8 years agoHelpfull: Yes(3) No(1)
• Ans sud be -100/200=-1/2
• 8 years agoHelpfull: Yes(0) No(0)
• average of this will be -0.5
• 8 years agoHelpfull: Yes(0) No(0)
• explain in brief
• 8 years agoHelpfull: Yes(0) No(0)
• 1 3 5 7 .................... 199
  +-2 -4 -6 -8.....................-200
  -1 -1 -1 -1 -1=>-100
  they asked avg so -100/200 = -0.5
  
• 7 years agoHelpfull: Yes(0) No(0)