When the numbers in a data group are arranged from smallest to largest, if the number of terms in the group is odd, the median is the middle number; if it is even, the median is the arithmetic mean of the two middle numbers. The mode is the value that appears most frequently among the data. The average temperature values measured in a region over one week are given below. Monday : $16^{\circ}\mathrm{C}$ Tuesday : $18^{\circ}\mathrm{C}$ Wednesday : $16^{\circ}\mathrm{C}$ Thursday : $20^{\circ}\mathrm{C}$ Friday : $20^{\circ}\mathrm{C}$ Saturday : $19^{\circ}\mathrm{C}$ Sunday : $20^{\circ}\mathrm{C}$ The mode of the data group formed by these average temperature values is found, and the days whose temperature values equal the mode of the data group are removed from the data group. Accordingly, what is the median of the new data group formed by the temperature values of the remaining days? A) 16 B) 17 C) 18 D) 19 E) 20
When the numbers in a data group are arranged from smallest to largest, if the number of terms in the group is odd, the median is the middle number; if it is even, the median is the arithmetic mean of the two middle numbers.
The mode is the value that appears most frequently among the data.
The average temperature values measured in a region over one week are given below.
Monday : $16^{\circ}\mathrm{C}$\\
Tuesday : $18^{\circ}\mathrm{C}$\\
Wednesday : $16^{\circ}\mathrm{C}$\\
Thursday : $20^{\circ}\mathrm{C}$\\
Friday : $20^{\circ}\mathrm{C}$\\
Saturday : $19^{\circ}\mathrm{C}$\\
Sunday : $20^{\circ}\mathrm{C}$
The mode of the data group formed by these average temperature values is found, and the days whose temperature values equal the mode of the data group are removed from the data group.
Accordingly, what is the median of the new data group formed by the temperature values of the remaining days?
A) 16
B) 17
C) 18
D) 19
E) 20