The two measures of these data that best describe the typical number of minutes Addison spent reading each day are mean and median.
Mean is the average value of a set of numbers, found by adding up all the numbers and dividing by the total count of numbers. Median is the middle value in a set of numbers when they are listed in order.
To find the mean of the data set, we add up all the values and divide by the total count:
(90 + 60 + 89 + 94 + 60 + 93) / 6 = 85.33
To find the median of the data set, we first put the values in order:
60, 60, 89, 90, 93, 94
Since there are an even number of values, we take the average of the two middle values:
(89 + 90) / 2 = 89.5
Therefore, the mean is 85.33 minutes and the median is 89.5 minutes, which are the two measures that best describe the typical number of minutes Addison spent reading each day.