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Identify the sampling technique used obtain the following sampleThe first 30 students leaving the cafeleria are asked how much money they spent on textbooks for the...

Question

Identify the sampling technique used obtain the following sampleThe first 30 students leaving the cafeleria are asked how much money they spent on textbooks for the semester Choose the correct sampling technique belowCluster sampling Systematic sampling Random samplingConvenience samplingStralified sampling

Identify the sampling technique used obtain the following sample The first 30 students leaving the cafeleria are asked how much money they spent on textbooks for the semester Choose the correct sampling technique below Cluster sampling Systematic sampling Random sampling Convenience sampling Stralified sampling



Answers

Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster. A student of the author conducted a survey on driving habits by randomly selecting three different classes and surveying all of the students as they left those classes.

So in a large school district, we know that a researcher identified all full time teachers and then randomly selected 30 of them to be interviewed. So what type of sampling method was used? A random sampling method is used. How do we know this? Well, it states that he, the researcher, randomly selected off 30 and a random sample method is where all members of the population have an equal chance of being selected. So as long as you were a full time teacher, you had unequal chance of being selected to be interviewed.

All right. So we have to identify the type of something used. A school official divides the student population into five classes, freshman, sophomore, junior, senior and graduate students. Okay, So he has divided the population into five different categories based on the number of years they're studying or they have studied or in which year they're studying. So sounds like stratified sampling. Let us see what happens. The official takes a simple random sample from each class and asked the members opinions regarding student services. Again, this is a clear example of stratified sampling. What he has done is in order to make the sample representative of all the five classes. He has divided the population into five different groups and randomly selected samples from those five groups. So the World Temple is going to be a mixture of people selected from all these five groups, so that all the five groups are appropriately uh represented by the world sample. So this is stratified sampling. This is our answer.

Here the table below sold the reader topple, asking his students. Here I am sitting with the table Here is our table And now how many are cyst week? What do you say their use spend doing a chemical work with simple more likely was smaller. So for this we have to come in group A or group be headed smaller. Simple. So for this here, the number off ours collected here are one of the 10% response to put three are dated 15.5 or maybe the 17 18% Your 4 to 5 24 4% of responses 6 to 7 that is here. Here there is a food in a 40% responses eight tonight, as we hear, can see and throw big here and I'm going it very clearly. This is our graph and when I am doing it and now again increases then increasing in Korean. When we calculate here, the more number off students have responded, they need 8 to 9. 10 to 11 12 to 13 and 16 plus ours for their academic work here. The number of students are here the next one peak that this year 4 to 5 hours and here 4 to 5 As well as here are some more number of picks here in Group B for more number for arts that makes Group B has bigger, simple space. There's way here is our explanation that here with the more number off, bigger, bigger graphs here. So that's right. Google is the bigger beta, and here Group A, it's a smaller. It is smaller than be so there says are.

In this question, we have to identify the type of something used. A statistics instructor with a large number of students, attempts to reduce time spent grading by only creating a portion of the assigned homework problems. He randomly select one of the first four problems in the assignment and then grades the grades that problem, and then every fourth problem there. After this is again an example of systematic sampling. An example of systematic sampling where from the population you select uh an observation following that you select every kid observation that comes your way Right where K. In this case happens to be four. So you're selecting a problem grading that, and then he's going to create every fourth problem thereafter. So this is nothing but systematic sampling. Uh huh.


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