The answer is 12, Good luck!
Answer:
Steve
Step-by-step explanation:
steve is buying 200 minutes which is more than 150 minutes
Hope i helped :) :) :)
Answer: -49
Step-by-step explanation:
Adding a positive number will make the negative number smaller. I am bad at explaining:(
Answer:
Step-by-step explanation:10x3 1/6=30 10/6=31 2/6=31 1/3
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.
