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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:

    \frac{7+9+10+14+8+16+13+x}{8}=12\\ 77+x=96\\x=96-77\\x=19

  • 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
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02 given the set of numbers n = {7, 9, 10, 14, 8, 16, 13}. when a number x is added to the set, the...