You want to know the average height of 7th graders. You ask 5 students from each homeroom. What sampling method did you use?
What is stratified random sampling?
100
25% of your 100 person sample like chocolate ice cream. How many people is that?
What is 25?
200
One group is more likely to be sampled than another
What is biased?
200
You want to know the height of 8th graders. You ask the first 30 students who walk into the auditorium. What sampling method did you use?
What is simple random?
(Convenience sample is also accepted.)
200
5 people in your randomly chosen 25 person sample choose vanilla ice cream. How many people in your 500 person school will likely choose vanilla?
What is 100?
300
A way of displaying data that compares medians
What is a box plot or box and whisker plot?
300
You want to know C.A. Erwin Middle School's favorite pizza toppings. You ask the kids in band with you. What kind of sampling method did you use?
What is a convenience sample?
300
The 7th grade cookout will have chips. You sample 5 people from each of 8 homerooms. 8 of them prefer Ruffles. How many individual bags of Ruffles do you think you need to buy for the whole 500 student cookout?
What is 100 bags?
400
the number that appears most often in a data set
What is mode?
400
You want to know who students would choose as teacher of the year, so you make an online survey and post it to your Tumblr. What sampling method did you use?
What is voluntary response?
400
The 7th grade cookout will have hotdogs and hamburgers. You sample 5 people from each of 8 homerooms. 10 of them prefer hotdogs. How many hotdogs do you think you need to buy for the whole 500 student cookout?
What is 125?
500
one of a number of ways to measure how numbers change.
What are measures of variability?
500
You want to know what kind of candy will sell the best at school. You ask every 10th person through the lunch line. What kind of sampling method did you use?
What is a systematic random sample?
500
The 7th grade cookout will have hamburgers. You sample 5 people from each of 8 homerooms. 20 of them prefer hamburgers. How many hamburgers do you think you need to buy for the whole 500 student cookout?