Determine the MEAN of the following data set.

{10, 11, 7, 8, 11, 10, 12, 7, 5}

Determine the MEAN of the following data set.

{90, 75, 60, 80, 85, 95, 80, 75}

Determine the MEAN number of hours Bernie has worked each day for the week.

Determine Frederica's MEAN dancing score.

(HINT: remember that frequency tells us how many time a values occurs/appears)

A football team plays 8 matches which leaves them with an average score of 67.5. If they play two more games where they score 89 and then 100, what does their average change to?