Unit 1
This holds information about the same characteristic for many cases
What is a variable?
A two dimensional plot used to examine strength of relationship between two variables as well as direction
and type of relationship.
scatterplot
observed y - predicted y
What is the residual?
randInt(1,9,3)
What is the calculator command for generating 3 random numbers from 1 to 9?
What blood type is known as the universal donor type?
Type O Negative
This is the statistical term for the number of times an event occurs
What is frequency?
An observation that substantially alters the correlation coefficient value.
outlier
Measures the direction and strength of a linear relationship between two quantitative variables.
What is correlation (or r)?
This experimental design involves the random assignment of units to treatments which are carried out separately within each group of units known to be similar in some way that is expected to affect the responses.
What is block design?
I have hands, yet I can't shake your hand, cannot give you five, and have no fingers. What am I?
a clock
A person's telephone number is an example of this type of variable
What is a Categorical Variable?
"the percentage of total variation in y that can be explained by the regression by x". When a question asks about "the percentage of total variation in y that can be explained by x", it's asking for ____.
r squared
The correct form of the equation of a regression line
What is y = a + bx?
The 3 basic principles of experimental design
What are control, randomize, and replicate?
2021 was a sourly good year 4 this artist. Can u guess who it is?
Olivia Rodrigo
A person's salary is an example of this type of variable.
What is a Quantitative Variable?
True or false: An outlier in either the x or y direction affects the value of the correlation, r.
True. An outlier in the x direction affects the mean and standard deviation of the x's. An outlier in the y direction affects the mean and standard deviation of the y's. These means and standard deviations are used in the computation of the correlation and thus, affect the value of the correlation.
This number always represents the amount which y changes when x increases
What is the slope
If changes in a response variable are due to the effects of the explanatory variable as well as the effects of the lurking variables, and we cannot distinguish between these effects.
What is confounding?
Who performed for the Super Bowl Halftime Show last year? (at least 2 artists)
Eminem, Dr. Dre, Snoop Dogg, Mary J. Blige, Kendrick Lamar
This table list the categories in a categorical variable and give the percentage of the observations for each category
What is a Relative Frequency Table?
This rule helps to determine if data is normally distributed by checking the number of observations within each interval.
What is the 68-95-99.7 rule?
This is determined by how close together the points in the scatterplot are
What is strength of the regression line?
An experiment where neither the subject nor the person administering the treatment knows which treatment each subject is receiving.
What is double blind experiment?
Which two teams participated in the 2004 “Malice at the Palace”?
Detroit Pistons, Indiana Pacers