What am I?
JMU's zip code is 22801
Categorical/nominal
I decided to survey 150 students at Northwestern about their favorite dining hall. Who is the population?
All students at Northwestern
Find the mode: 3, 7, 10, 9, 10, 12, 14, 10
10
A histogram shows a low frequency (tail end) on the right side of the graph. What kind of skew?
Right skew
A common nickname for the city
The Windy City
Taylor Swift has 14 grammy's
Quantitative/discrete
An auto engineer is curious about the paint thickness on cars at her factory. She randomly selects 35 painted cars and measures the paint thickness of each. What's the sample?
35 cars
Calculate the mean: 2, 4, 6, 14, 15, 19, 20, 35
14.375
Higher frequency data is on the right side of the histogram, what kind of skew is this?
left skewed
Rowr! What is the feline name of the sports teams of Northwestern University?
Wildcats
The tallest person in history was recorded to be 8'11"
Quantitative/continuous
What sampling technique?:
As students enter the building through the front door lobby, every 3rd student is asked about their favorite subject.
Systematic
Find the median:
0.1, 0.4, 0.8, 0.14, 0.23
0.8
If a graph contains two peaks in the data it's referred to as...
Bimodal
This Chicago native was an American Idol finalist and is now a successful singer
Jennifer Hudson
Adiba is a senior in undergrad
Categorical/ordinal
What sampling technique?:
Armand chooses 4 of the 10 buses in front of his school, and polls 10 students from each to see if they think buses are comfortable.
Cluster sampling
Find the outlier(s): 57, 76, 96, 97, 98, 99, 102, 104
57
In a boxplot, the 25th percentile is represented by this quartile...
Q1
What is the name of the public park in Chicago’s Loop area? It’s not necessary to spend 1,000 years there.
Millennium Park
Name all of these symbols: x̄, μ, σ, s, n
Sample mean, population mean, population standard dev, sample standard dev, sample size.
What sampling technique?:
At Seneca Valley High School a sample of 200 students is formed by randomly selecting 100 male students and 100 female students to survey about the cafeteria food.
Stratified
Find the mean, median, mode, and outliers:
1.3, 5.7, 10.4, 10.4, 10.5, 12.3, 13.9, 14, 14.2, 16.3
Mean:10.9
Median: 11.4
Mode: 10.4
Outliers: 1.3
What's a common misconception about what good graphs should look like? (think dimensions!)
2D > 3D
What does "Chicago" mean?
The word comes from the Algonquin language: “shikaakwa,” meaning “striped skunk” or “onion.” According to early explorers, the lakes and streams around Chicago were full of wild onions, leeks, and ramps.