Vocab
What is slope?
Draw an example of positive association.
The amount of candy a trick-or-treater receives on Halloween is modeled by the equation, y=2x+5.
x = number of houses visited
y = number of pieces of candy
Describe the slope and y-intercept in terms of the problem.
What is each house you visit, you receive 2 more pieces of candy, and
when you have gone to no houses, you have 5 pieces of candy?
The amount of candy a trick-or-treater receives on Halloween is modeled by the equation, y=2x+5.
x = number of houses visited
y = number of pieces of candy
Find how many pieces of candy will you have if you visit 18 houses.
What is 41 pieces of candy?
Describe the difference between correlation and causation.
What is causation is one event causing another to happen and correlation is how well a linear regression fits a data set?
A line of best fit.
What is a linear regression?
Draw an example of no association.
Graph with dots all over
A teacher compared test scores and the amount of time spent studying on a recent algebra test. The result was modeled by the equation, y=3x+57.
x = minutes spent studying
y = test score
Describe the slope and y-intercept in terms of the problem.
What is for every minute studying, your test score goes up 3% and if a student studies for 0 minutes, they receive a 57%?
A teacher compared test scores and the amount of time spent studying on a recent algebra test. The result was modeled by the equation, y=3x+57.
x = minutes spent studying
y = test score
Find the score for a student who studied for 23 minutes.
What is 126%?
It's true that eating fruits and vegetables causes a person to not get sick.
Answer yes or no and explain why!
yes or no with explanation
A prediction within a data set.
What is interpolation?
Describe the correlation (strength and direction) of a graph with a correlation coefficient of 0.8492.
What is a pretty good fit and positive?
The snowfall at White Pine last winter was represented by the equation, y=4x+10.
x = days
y = inches of snow
Describe the slope and y-intercept in terms of the problem.
What is 4 inches of snow per day and
on day 0, there were 10 inches of snow?
The snowfall at White Pine last winter was represented by the equation, y=4x+10.
x = days
y = inches of snow
Find the amount of snow on the mountain on December 23rd (assuming that December 1st is Day 1).
What is 102 inches of snow?
A common phrase is "an apple a day keeps the doctor away" meaning eating fruits and vegetables help you from getting sick.
Eating fruits and vegetables and not getting sick are correlated.
Answer yes or no and explain why!
What is yes? Typically, those who eat healthy get sick less often.
How well a linear regression fits a data set.
What is correlation?
Describe the correlation (strength and direction) of a graph with a correlation coefficient of -0.7844.
What is a pretty good fit and negative?
The moose population per year in Pinedale is represented by the following equation, y=14x+12,004.
x = years
y = population
Describe the slope and y-intercept in terms of the problem.
What is 14 more moose are born every year and
in year 0, there were 12,004 moose?
The moose population per year in Pinedale is represented by the following equation, y=14x+12,004.
x = years
y = population
Find the amount of moose in year 2157 (assuming that year 0 = year 2000).
What is 14,202 moose?
A common phrase is "an apple a day keeps the doctor away" meaning eating fruits and vegetables helps you from getting sick.
Eating fruits and vegetables is a sufficient condition for not getting sick. (If you never get sick, it's only because you ate fruits and vegetables).
Answer yes or no and explain why!
What is no, you might be an active person?
The value between -1 and 1 that shows strength and direction of a linear regression.
What is a correlation coefficient?
Describe the correlation (strength and direction) of a graph with a correlation coefficient of 0.001.
What is no correlation and no direction?
The amount of people attending a minor-league baseball game is represented by the equation, y=97x+8668.
x = game number
y = attendance
Describe the slope and y-intercept in terms of the problem.
What is 97 more people come to each game and
at game 0, 8668 people came?
The number of students in a school choir has increased, represented by y=13.7x+17.
x = year
y = number of students
Predict the amount of students in the choir in year 5.
What is 85.5?
A common phrase is "an apple a day keeps the doctor away" meaning eating fruits and vegetables help you from getting sick.
Eating fruits and vegetables is a necessary condition for not getting sick. (If you eat fruits and vegetables you will never get sick).
Answer yes or no and explain why!
What is no, you can still get sick even if you eat healthy?