02 given the set of numbers n = {7, 9, 10, 14, 8, 16, 13}. when a number x is added to the set, the new mean is 12. calculate the value of x.​

Answers

• Réponse publiée par: snow01

  x=19

  Step-by-step explanation:

  
• Réponse publiée par: batopusong81

    19

  Step-by-step explanation:

        ( 7 + 9 + 10 + 14 + 8 + 16 + 13 + x)/8   =  12

           77 + x   =   96

                   x   =   96 -77

                        =    19
• Réponse publiée par: sicienth

  value of x is equal to 19

  Step-by-step explanation:

  since 12 is the new mean all you have to do is to get the n or population of the given numbers since the given population is 7 then plus 1 is equal to 8  then the new mean is 12 multiply th twogiven 12x8=96 then you must get the number total of 96 to have 12 as ur mean then adding given numbers is = to 77 . then subtract 96 and 77 then its difference is 19 so add 19 to 77 then it will have the result of 96 then divide by its population which is 8 then you will get the result of 12 which is your new mean.
• Réponse publiée par: kuanjunjunkuan

  Mean=sum of nos. ÷ no of nos.
  
  Therefore,
  12=(77+x)÷8
  
  cross multiply,
  12(8)=77+x
  96=77+x
  
  Transpose,
  x=96-77
  x=19
  
  answer is 19