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.
The last is one and the lump of clay one is correct. The law of conversation is that energy can not be created, nor destroyed. This is a perfect example because the apple is not losing any of the matter it had in the beginning.
Answer:
4,500,000 population in 1950
Step-by-step explanation:
the equation is 4p + 1,000,000 = 19,800,000
Answer:
22 minutes
Step-by-step explanation:
40--15 =40+15=55
55/2.5=22
