Answer:
Cluster Sampling
Step-by-step explanation:
I cant be 100% sure as i am not in statistics, but by definition cluster sampling is a probability sampling technique where researchers divide the population into multiple groups (clusters) for research (in this case its the phone book). Researchers then select random groups (three random pages) with a simple random or systematic random sampling technique for data collection and data analysis(interviews).
so that appears to be what is happening in this scenario.
Answer:
<em>Hey mate, here's ur answer:</em>
<em>----------------------------------------------------------</em>
<em>(4a - 3b + 4c) + (8a - 2b + 3c)</em>
=4a+−3b+4c+8a+−2b+3c
=(4a+8a)+(−3b+−2b)+(4c+3c)
<u>=12a−5b+7c</u>
----------------------------------------------------------
<em>Hope it helps</em>
<em>#stayhomestaysafemate</em>
<em>:D</em>
Answer:
A. (x*2.5)*x
B. (32*2.5)*32=2560
Step-by-step explanation:
Answer:
(x+9)(x-2)
Step-by-step explanation:
There has to be two numbers that add to be 7 and multiply to be -18.
So 9 and -2
Hope this helps
Brainliest would be appreciated
Answer:
Step-by-step explanation:
Length (L)= W + 30yds
L= W + 30
L= 53 + 30
L=83
the length is 83 yards. :)
