Question

51 These 15 ages of students at an after-schoolevent are in order from least to greatest.6, 6, 6, 7, 8, 9, 9, 10, 11, 12, 12, 13, 14, 15, 18What is the Minimum number of this data?A 1B 3C7D 651

Answer 1

53)

median

the median is defined as the middle value of the data

given the follow formula

$M=X\frac{n+1}{2}$

where X represent the place of the value in the data

and n the number of digits in the data

Replacing

$M=X\frac{15+1}{2}=X\frac{16}{2}=X8$

so the median is the 8th value of the data

then

median=10

answer

C)10