Hi!
Answers:
51. w=9/4
53. b=12
18 or 3 * 6 because to find out how many possible contengencys you muktiplyy the factors.
Answer:
7/6
Step-by-step explanation:
The width to length ratio is ...
... width / length = (4 2/3 yards)/(4 yards) = (14/3)/4 = 14/12
... width/length = 7/6
This is an example of "a stratified sample".
<u>Answer:</u> Option B
<u>Explanation:</u>
A group-based sampling process that can be divided into subpopulations. For statistical studies, testing of each subpopulation separately may be useful if subpopulations within a total population differ, thus understood as "Stratified sampling".
One might, for instance, divide a adults sample into subgroups in terms of age, like 18 to 29, 30 to 39, 40 to 49, 50–59 etc with decided age difference as needed. A stratified sample may be more accurate than an easy sample of the similar size by random. As it offers more accuracy, a stratified sample sometimes involves a smaller sample, saving money.
