What percent of the standard normal z-distribution lies between z = -2.5 and z = 0? (Round your answer to two decimal places.)

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

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

you need to give us more information since we can't answer