Terms
Normal Distribution
Experimental Design
Probability
Misc
100
A summary that gives a quick summary of the center and spread of a distribution and includes: Minimum, Maximum, Mean, Q1, and Q3.
What is the five number summary and what does it include?
100
The name of the shape of a normal distribution might be heard at your door, after class, or after church on Sundays.
What is a bell curve?
100
The three key principles of designed experiments
What is Comparison, Randomization, and Replication?
100
Is the toss of a weighted coin considered a random event?
What is no?
100
Mean, Standard Deviation, and Interquartile Range all share this characteristic
What is resistance to outliers?
200
The 68-95-99.7 rule, is a statistical rule which states that for a normal distribution, almost all observed data will fall within three standard deviations (denoted by σ) of the mean
What is the Empirical Rule?
200
This description of a histogram has more data to the left with a tail going out to the right, and its mean to the right of the median.
What is right skewed?
200
Difference between observational and designed experiments
What is control?
200
The general addition rule for two events that are not disjoint
What is P(A or B) = P(A) + P(B) - P(A and B).
200
A study conducted has 100 people who are either placed on a high, moderate or low-fat calorie diet and either given vitamins (yes or no). After a year, their weight is checked for all subjects. High, moderate, or low-fat calorie diet and vitamins or no vitamins represents what?
What is the study's treatment?
300
Specific combinations of factors applied to the experimental units.
What are treatments?
300
Any normal distribution can be described effectively by these two measures.
What are the mean and standard deviation?
300
The impact of lurking variables on data
What is Confounding?
300
How to solve a conditional probability problem
What is calculated by multiplying the probability of the preceding event by the probability of the succeeding or conditional event?
300
The linear relationship of this graph:
What is a strong, negative relationship?
400
Subjects are randomly assigned to treatments in predefined section of subjects.
What is a Block design?
400
68% of data fall within one standard deviation, 95% fall within two, and 99.7% fall within three.
What is the empirical rule?
400
Drawing from a hat, a table of numbers, and a computer simulation are all examples of this
What is randomization?
400
Calculation of the coefficient of determination?
What is taking the square root of the correlation coefficient?
400
This python command generates the 5 number summary
data.describe()
500
The average value of the squared deviations of X from its mean u_x. The variance of X is denoted by 𝜎_𝑥^2 .
What is the definition of Variance of a random variable?
500
(X - μ) / σ
What is the formula for z-score?
500
A cause of biased sampling, (hint: when a portion of the population is more likely to be in the sample than others)
What is voluntary sampling and/or convenience sampling?
500
A trend that appears in different groups of data may disappear or even reverse when the groups are combined.
What is Simons paradox
500
What direction is this graph skewed?
What is right skewed?