The number of days that 12 patients stayed in a hospital after hip replacement was recorded during January and are shown in the table below. Find the mean and median length of hospital stay for these patients. Round to the nearest tenth. 5
8
4
4
8
6
4
5
5
8
5
4
A) Mean: 6.5 days; Median: 6.0 days
B) Mean: 5.5 days; Median: 5.0 days
C) Mean: 4.5 days; Median: 4.0 days
D) Mean: 7.5 days; Median: 7.0 days
E) Mean: 3.5 days; Median: 3.0 days

Question

Quizplus · Accepted Answer

To find the mean, add all the days together and divide by the number of patients: (5+8+4+4+8+6+4+5+5+8+5+4) / 12 = 66 / 12 = 5.5 days. To find the median, first arrange the numbers in ascending order: 4, 4, 4, 4, 5, 5, 5, 5, 6, 8, 8, 8. With 12 numbers, the median is the average of the 6th and 7th numbers: (5+5) / 2 = 5.0 days.

The Number of Days That 12 Patients Stayed in a Hospital