65, 68, 70,72,73,75,76
Give medium
Lower quartile
Upper quartile
To find the median (middle value) of the given data set:
Arrange the numbers in ascending order: 65, 68, 70, 72, 73, 75, 76
Since there are seven numbers, the median will be the (7+1)/2 = 4th number, which is 72.
To find the lower quartile (Q1), which is the median of the lower half of the data:
Arrange the numbers in ascending order: 65, 68, 70
Since there are three numbers, the median will be the (3+1)/2 = 2nd number, which is 68.
To find the upper quartile (Q3), which is the median of the upper half of the data:
Arrange the numbers in ascending order: 73, 75, 76
Since there are three numbers, the median will be the (3+1)/2 = 2nd number, which is 75.