Alejandra has five hair ribbons measuring 8, 13, 11, 9, and 13 inches long. what is the median length of the ribbons?

The median is defined to be simply the middle number in a data set when all values are arranged in ascending order. So first let us arrange all the values in ascending order:

8, 9, 11, 13, 13

We can see that 11 is the middle number in the data set. Therefore the median is 11.

11

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: