Answer: Stratified sampling
Step-by-step explanation:
Stratified sampling is a particular kind of random sampling technique.
Here , the researcher splits the entire population into distinct groups known as strata.
Then he draw a sample by taking participants from each strata and continue his work on sample.
As per given ,
Researcher = Sneha
Strata = Each floor
Since from each floor she randomly selects 2 rooms and inspects them and then takes the average of these scores.
Therefore , Sneha used the Stratified sampling technique.
Answer: w = 50
Step-by-step explanation:
4.5w - 5.1w = -30
-0.6w = -30
0.6w = 30
W = 50
Answer:
6.2 and 6.4
Step-by-step explanation:
I am right please like
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▹ Answer
<em>b = -11</em>
▹ Step-by-Step Explanation
b + 9 = -2
-9 -9
b = -2 - 9
b = -2 + -9
b = -11
Hope this helps!
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Answer:
D.
Step-by-step explanation:
Ape x.
