Canvas X 0 500 1500 2500 0 500 1500 2500 20 40 20 40 40 Whole...

Transcribed Image Text:

Canvas X 0 500 1500 2500 0 500 1500 2500 20 40 20 40 40 Whole Population n=2 n=5 n=20 Question 21 A 60 60 C 80 88 100 60 60 80 100 [Choose] [Choose ] [Choose] [Choose ] 1500 2500 009 0 2500 0 500 1500 B 20 40 60 20 20 < > 40 40 80 100 88 60 D 60 80 88 When proper probability notation is used, a numerical probability will never be less than 0 or greater than 1. 100 2 pts Canvas X X CO Question 20 8 pts In a specific Florida county, the age of U.S. citizens who vote in elections is left-skewed. First, you randomly select two people from this dataset and record the mean of those two observations. You repeat this process many times to create a new dataset, consisting of the means of samples of size n-2 from the original data. Next, you perform the same procedure of randomly selecting observations from the original dataset and taking the mean, except this time taking samples of size n=5, and record these as another new dataset. Finally, you perform the same procedure again with samples of size n=20. Below are four histograms, labeled A, B, C, and D. Identify which is the histogram of the whole population, and which are the histograms of the sample means for n=2, n=5, and n=20. 0 500 1500 2500 2500 1500 0 500 acer 20 20 20 40 40 40 40 A 60 60 0 80 100 69 60 80 88 100 1500 2500 500 009 0 2500 1500 0 500 500 20 20 20 20 40 40 40 B 60 60 D 00 60 08 80 100 80 80 100 Canvas X 0 500 1500 2500 0 500 1500 2500 20 40 20 40 40 Whole Population n=2 n=5 n=20 Question 21 A 60 60 C 80 88 100 60 60 80 100 [Choose] [Choose ] [Choose] [Choose ] 1500 2500 009 0 2500 0 500 1500 B 20 40 60 20 20 < > 40 40 80 100 88 60 D 60 80 88 When proper probability notation is used, a numerical probability will never be less than 0 or greater than 1. 100 2 pts Canvas X X CO Question 20 8 pts In a specific Florida county, the age of U.S. citizens who vote in elections is left-skewed. First, you randomly select two people from this dataset and record the mean of those two observations. You repeat this process many times to create a new dataset, consisting of the means of samples of size n-2 from the original data. Next, you perform the same procedure of randomly selecting observations from the original dataset and taking the mean, except this time taking samples of size n=5, and record these as another new dataset. Finally, you perform the same procedure again with samples of size n=20. Below are four histograms, labeled A, B, C, and D. Identify which is the histogram of the whole population, and which are the histograms of the sample means for n=2, n=5, and n=20. 0 500 1500 2500 2500 1500 0 500 acer 20 20 20 40 40 40 40 A 60 60 0 80 100 69 60 80 88 100 1500 2500 500 009 0 2500 1500 0 500 500 20 20 20 20 40 40 40 B 60 60 D 00 60 08 80 100 80 80 100