Answer:
(a) 
(b) 
Step-by-step explanation:
(a) 
can also be written as 
x 
the = ± y
Therefore :
= ±
since it was given that y < 0 , then the factor will be
(b) 
can also be written as : 
x
Therefore , one of the factor is
Unit rate is how many units of work can you do in 1 unit of time
3 and 3/5=3+3/5=15/5+3/5=18/5
(18/5mi)/40mins
divide by 40
aka times 1/40
(18/5)(1/40)=18/200=9/100=0.9/10=0.09/1
0.09 miles per minute
Answer:
okay, what's the rest of the question?
Answer:
Item (D)
Step-by-step explanation:
In the stratified random sample we would divide our population into homogeneous groups / strata and then we randomly select the individuals in each group / stratum.
In general, when comparing with the simple random sample, we realize that stratified random sampling has the advantage of increasing accuracy and decreasing variability.
In the question, we have two strata: female students and male students. On each one of the strata, a random sample of 25 names was made in the list.
