Write a set of data in which the mean is 15, the median is 15 and the modes are 13 & 15.this is my daughter's homework question...she's in 6th...

To have a set of data with mean 15 = median and modes 13
and 15.

The median is the middle of the dat when arraged
according to increasing value of the characteristic.

Mode
or the modes are values of the variable for which the frequency is
hoghest.

Mean is the average value
.

 xi              fi          
xifi

12             
2          24

13              5         
65

14              1         
14

15              5         
75

16              3         
48

17              2         
34

18              2          36

19             
1          19

--------------------------------

Total        
21         315

Sum (fi) =
21

 So Mean = sum of(xi*fi) sum of (fi) = 315/21 =
15

Mode 13  and 15 with highest
frequency.

Median is the middle of xi = 15 since x i 's are
equal in number both above and below.