Find the mean deviation about the mean for the data 4,7,8,9,10,12,13,17?

Answer is 3

Step-by-step explanation:

Mean of the given data=sum of all terms/total number of terms

x= 4+7+8+9+10+12+13+17/8

=80/8

=10

Mean deviation about mean

={|xi-x|/8

=24/8

=3

I hope it's helpful!

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

won't that be plagrisim thought?

step-by-step explanation: