Your answer is D. This is because a number multiplied by itself is x².
Answer:
61
Step-by-step explanation:
first subtract the 34 students that went with a car then divide 366 ÷ 6=61
400-34=366
366÷ 6=61
Hope this helps :)
A.
the 2 quantaties are
ricky's distance and greg's distance
it should be total 8 miles
B. ricky distance=ricky rate times ricky time
ricky distance=1.5*3
ricky distance=4.5 miles
ricky distance+greg distance=8
4.5+gdistance=8
minus 4.5 both sides
gdistance=3.5
gdistance=grate time gtime
3.5=2 times time
divide both sides by 2
1.75=time
greg walked 1.75 hour
not sure how to do variable thing and what goes where
ricky walked 4.5 miles
greg walked 1.75 hour and traveled 3.5 miles
Answer:
A. A stratified random sample is a combination of simple random samples selected from each of several strata.
Step-by-step explanation:
In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.
There are various types of sampling used by researchers and these are;
1. Random sampling.
2. Convenience sampling.
3. Systematic sampling.
4. Cluster sampling.
5. Stratified sampling.
Stratified random sampling can be defined as a method of sampling that involves dividing a population into smaller groups known as strata.
In stratified random sampling, the strata are formed based on member's shared characteristics (e.g female or male, occupation, education) or attribute (e.g black or white).
<em>Hence, the statement about stratified random sampling which is true is that, a stratified random sample is a combination of simple random samples selected from each of several strata. </em>
