These data show the age in years of 9 members of the youth orchestra.
12     14     16     17.5     10     18     15     15.5     19
What is the IQR (interquartile range) for these data?

Respuesta :

10.2 the sales tax minus 16.99 then divided by 16.99
First quartile is 13
Third quartile is 17.75
Take 17.75 - 13 = 4.75
The IQR is 4.75