![ansbert289](/avatars/28834.jpg)
ansbert289
12.03.2021 •
Mathematics
A biology teacher wants to know which dissection his students liked best this semester, so he randomly selects eights students from each of his 5 classes to participate in a survey.
a. What is the sample in this situation?
b. What is the population?
THIS IS NOT MULTIPLE CHOICE
Solved
Show answers
More tips
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
Answers on questions: Mathematics
- M Mathematics nolan bought a shirt on sale for 24. the original price of the shirt was 4 times that amount the original price of that shirt was 4 times that amount...
- M Mathematics The mall is located 2.4 kilometers north of jays house. The caffe shop is located 0.7 kilometers east of the mall. What is the distance between jays hair and the coffe shop...
- M Mathematics Solve the math problem...
- M Mathematics Will mark brainleist...
- M Mathematics Find the value of X show work please...
- M Mathematics the variable expressions represent the three interior angle measures of triangle ABC, find the measure of each angle of triangle ABC...
- M Mathematics WILL GIVE BRAINLIEST...
- M Mathematics Sara is going to home depot to buy some plants for her back yard. The price of 4 rose bushes is $12 and the price of 5 tulips is $20. Sara ends up buying $80 worth of roses and tulip...
- M Mathematics Which fractions are closer to 0 than 1? Check all that apply. Three-sixths One-eighth Seven-tenths StartFraction 20 over 50 EndFraction StartFraction 55 over 90 EndFraction...
- M Mathematics How do I cancel this account my son graduated in 2020 and I just got charged another year?...
Ответ:
Answers:
a) The 40 students selected to participate in the survey (8*5 = 40).b) The population is the set of all students in his five classes combined.Explanation:
The teacher wants to know something about his students, so he's only focused on them and no one else. The teacher has 5 classes. Let's say each class has 40 students. That would mean 40*5 = 200 students total are taught by this bio teacher, and these 200 students make up the population. We're not considering any other student in this school since they are not in this teacher's class.
Once the population is well formed and well defined, the sample is drawn from the population. Specifically, the teacher is randomly selecting 8 people from each class. The teacher is using the stratified sample technique. Each class is a stratum, ie, a separate group. The plural of stratum is strata. Because there are 5 classes, and 8 people selected per class, this leads to an overall sample of 8*5 = 40 students. Those 40 students chosen randomly fairly represent the 200 students in the population. Therefore, this process is fairly unbiased.
Be sure not to mix stratified sampling with cluster sampling. Cluster sampling is not performed here because that would mean the teacher randomly selects say 2 classrooms (ie clusters) and samples everyone in each cluster selected. Instead, the teacher is only picking representatives from each class, as if those people were elected to office. As you can probably guess, cluster sampling can be expensive in terms of time and money, so if you need to apply a cluster sample, then it's best to make the clusters as small as possible but also make sure each cluster is reflective of the population.
Ответ:
the answer to your equation is 53/3
Step-by-step explanation:
the easiest way to do it is to multiply the denominator (bottom number of bar line) by the whole number at which it makes it a mixed number, then add the numerator (top number of fraction bar line) to your product.
hope this helped ((; brainliest please !!