Module 1: Introduction to Statistics
A population is the collection of all outcomes, responses, measurements, or counts that are of interest.
A _____________ is a subset of a population.
Sample
This measure of center is found by adding all data values and dividing by how many values there are.
Mean
This standardized value allows comparison of data points from different normal distributions with different means and standard deviations.
Z-score
This app is full of trends like “no bones day” and teens often scroll here instead of doing homework.
TikTok
This planet is known as the “Red Planet” because of its reddish appearance.
Mars
A _________ is a numerical description of a population characteristic.
A statistic is a numerical description of a sample characteristic.
Parameter
If most data values are on the left and the tail stretches to the right, this describes the shape of the distribution.
Right-skewed
Test A has a mean of 75 and a standard deviation of 8; Test B has a mean of 60 and a standard deviation of 6. A student scores 83 on Test A and 66 on Test B—on which test did the student perform better relative to others?
Test B
The term “sus,” popularized by this online game, is now used by teens to describe someone acting shady.
Among Us
This artist released the 2016 album Lemonade, which includes hits like “Formation.”
Beyoncé
This type of data includes: income, height, IQ score, etc...
Quantitative Data
In a box-and-whisker plot, this value represents the median and divides the data set in half.
Second Quartile (Q2)
In a normal distribution, find the approximate probability that a randomly selected observation has a z-score between –1.25 and 0.85.
Approximately 0.7
This term, often used in memes, describes when someone overreacts or is acting dramatic in response to something minor, like a teacher assigning homework.
Extra
Octopuses have three of these, and their blood is blue due to copper-based hemocyanin.
Hearts
Researchers want to estimate how frequently drivers use their phones at red lights. The best method of data collection here would be...
Observational Study
According to the Empirical Rule, about 95% of data in a normal distribution fall within this many standard deviations of the mean.
Two standard deviations.
The top 5% of values in a normal distribution are considered unusually high; this z-score marks the cutoff for that region.
z=1.645
On social media, this is what teens call it when a video or post is so popular that everyone is copying it or doing the same challenge.
Going viral (or trending)
Honey never spoils; jars of it have been found edible in this ancient civilization’s tombs.
Ancient Egypt
A school administrator surveys 200 randomly selected students out of the 1,500 enrolled to estimate the average number of hours spent studying each week; in this scenario, the 1,500 students are known as this.
Population
Two data sets have the same mean, but Data Set A’s values are more spread out than Data Set B’s; this statistic would be larger for Data Set A.
Standard deviation.
SAT math scores are normally distributed with a mean of 520 and a standard deviation of 110. A score is considered “advanced” if it falls in the top 12% of all scores. What is the minimum score needed to be classified as advanced?
Approximately 650
Teens often type this elongated exclamation online to show amazement, hype, or approval, especially in reaction videos and viral posts.
"Sheeeeesh"
This 2003 book series by Suzanne Collins depicts a dystopian society where children fight to the death on live television.
The Hunger Games