Answer:
<h2>10 inches</h2>
Step-by-step explanation:
Given the circumference= 30 in
we know that the formula for circumference is


The diameter is 2*r= 4.77*2=9.55 in
Approximately the diameter is 10 inches
Answer:
There is no error, Amad is correct.
Step-by-step explanation:
Khan Academy Checked.
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.
I am not completely sure but Khan Academy might show how to do that. Or it might at least give an example.
Answer:
3/4 divided by 1/8 Is 6
Step-by-step explanation: