The waiting times for an elevator are normally distributed with a mean of 1.5 minutes and a
standard deviation of 20 seconds. What wait
time , in seconds, is 3 standard deviatons below
the mean?

arithmetic sequence: a sequnce in which the diffrence between any two consecutive terms is the same

step-by-step explanation:

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

one set of data has more variation than the other. hope this !

you ignore the remainder, therefore the answer is y = x+2

step-by-step explanation:

you have to divide the denominator by the numerator. you can use synthetic division or long division.

[-5] .     1 .     7 .     11

x + 2 + 1/x+5