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.
Answer:
D. 423 miles
Step-by-step explanation:
75 miles(3 hours)
66 miles(3 hours)
225+198=423 miles
Answer:
60.3 mph
Step-by-step explanation:
211.05 miles / 3.5 hours = 60.3 miles/hour
That's 5/7 of the house
also what's the question
-35 is greater because they are both negative, the number CLOSEST to 0 is greater
