It is given in the question that in six computer games olga scored 122, 138 , 130 , 98 , 102 and 124.
To find the mean we have to add all the scores first. ANd then divide the result by the number of computer games, which is 6.
So the mean is
[tex] \frac{122+ 138 +130 +98 + 102 + 124}{6} = \frac{714}{6} = 119 [/tex]
Therefore the required mean is 119 .
