Categorical or Numerical Variables
The categorical variable:
(1) number of students in each class
(2) color of eyes
(3) grades as a percentage
What is (2) color of eyes?
The mode of the data:
1.06, 9.3, 59.59, 6.01, 25.17, 1.06, 6, 1.06, 0.7
What is 1.06?
These are included in the five number summary for box plots?
What is
(1) min
(2) quartile 1
(3) median
(4) quartile 3
(5) max
A point that is far away from the cluster of other points.
The probability of rolling a 2 or 3 on a six sided die.
What is 1/3??
The data display used to represent categorical variables:
(1) box plots
(2) bar graphs
(3) scatter plots
What is (2) bar graphs?
The median of: 7, 8, 16, 11, 9, 13
What is 10?
This goes on the vertical axis of a histogram.
What is frequency (count)?
A number between -1 and +1 that represents the linear dependence of two variables.
What is the correlation coefficient?
A bag contains 5 red balls, 3 green balls, and 2 blue balls. Drawing two red balls consecutively without replacement.
What is 2/9?
The variable height quantitative (numerical) or categorical?
What is quantitative (numerical)?
The interquartile range of:
35, 49, 53, 69, 69, 77, 84
What is 28?
The type of display we would use to represent the outcomes of Steph Curry's shots.
What is bar graph?
Two variables have a correlation coefficient of r=0.26. The relationship is:
-strong or weak?
- positive or negative?
What is weak and positive?
A jar contains 11 marbles: 4 blue, 3 green, 2 yellow, 1 white, and 1 black.
P(green and yellow) without replacement.
What is 3/55?
A letter grade is quantitative (numerical) or categorical.
What is categorical?
The range of:
33, 4, 5, 6, 10, 15, 7, 18, 19, 21, 29
What is 29?
The type of graph we would use to show the spread of heights for high school students.
What is histogram?
The difference between the predicted and actual value of a variable.
What is the residual?
What is theoretical probability?
The data display used to show the relationship between two numerical variables.
What is scatter plot?
The mean of: 13, 9, 4, 19, 7, 8, 17
What is 11?
When a histogram is skewed right most of the data is on this side.
What is the left side of the graph?
What does a correlation of 0 tell us about a data set?
The is no clear pattern or trend to the data points
If a card is drawn from the deck and we know that the card is a black card. The probability that it is a multiple of 2.
What is 5/13?