AP Statistics Gathering Data

Choose the correct sampling method:

A student council wants to know whether students would like the council to sponsor a mid winter dance or mid winter carnival this year

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Survey 20 randomly selected freshmen, 20 randomly selected sophomores, 20 randomly selected juniors, and 20 randomly selected seniors

• systematic

• random sample

• convenience

• stratified

• cluster

If we are looking at a boxplot and notice that the distribution is skewed right, what measure of center should we use?

• Mean

• Mode

• Median

• IQR

A researcher has gathered data about the number of soft drinks teenagers drink on a daily basis by taking a random sample of 1500 teenagers from around the world. We find that our data shows that the mean is larger than the median. What does this tell us about the shape of the distribution?

• skewed right

• skewed left

• uniform

• symmetric

Given the five number summary below, find the IQR:

5,8,10,14,26

• 21

• 6

• 10

• 9

• A

• B

• C

• D

• E

The school district is interested in finding out student and parent opinions about the dress code.  They obtain a list of students from each school in the district and put them in alphabetical order.  They then send a survey to every 25th student and their parents on the list.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Sampling

• Convenience Sampling

The histogram represents data obtained after a census of an entire population. The sampling distribution of the sample mean based on samples of size 2 were simulated, and a histogram of the results was produced. Which of the following histograms is most likely the histogram of that sampling distribution?

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• 
• 
• 
• 

The school district is interested in finding out student and parent opinions about the dress code. They obtain a list of students from each school in the district and put them in alphabetical order. They then send a survey to every 25th student and their parents on the list.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Sampling

• Convenience Sampling

• A

• B

• C

• D

• E

Involves dividing the population into subgroups, you randomly select entire subgroups. What sampling technique is this?

• Simple Random Sample

• Snowball Sample

• Cluster Random Sample

• Stratified Random Sample