Answer:
25%
Step-by-step explanation:
Q1=3 Q2[median]=12 Q3=14 and the IQR is 11
First make the denominators of the fractions the same by multiplying.

×

=

Now we just need to add the fractions together

=

9/6 would be the answer, but it can be simplified further, then converted into decimal form.

÷

=
=1.5 yardsYour final answer is 1.5 yards of ribbon are needed.
Answer:
See attachment
Step-by-step explanation: