Ines read the following number of pages each day last week: 76, 123, 84, 110, 36, 20, and 90. Which is a reasonable prediction of the mean number of pages she reads each day throughout the year?
75
85
95
100
85
To find the mean number of pages Ines reads each day throughout the year, we add up the number of pages she reads each day and divide by the number of days in a week.
76 + 123 + 84 + 110 + 36 + 20 + 90 = 539
539 / 7 = 77
Since we are looking for a prediction of the mean number of pages she reads each day throughout the year, it is reasonable to assume that her reading habits will remain relatively consistent, so the closest option is 85.