A.
• To get the mean you add all the numbers and divide by how many numbers there are. All the numbers added is 255. Since there are 9 numbers you divide 255 by 9.
Mean: 28
• To get the median you order the numbers from least to greatest. The number in the middle is the median.
Median: 15
B. The mean would give her parents the most accurate phone information use because it tells the average amount of minutes she uses her phone per day.