WorksheetsData Science
Total questions: 50
Worksheet time: 31mins
the inputs to a function; the expressions for each argument follow the function name
argument
bar chart
Boolean
box plot
a display of categorical data that uses bars positioned over category values; each bar’s height reflects the count or percentage of data values in that category
bar chart
Boolean
box plot
categorical data
a type of data with two values: true and false
Boolean
box plot
categorical data
contract
the box plot (a.k.a. box-and whisker-plot) is a way of displaying a distribution of data based on the five-number summary: minimum, first quartile, median, third quartile, and maximum
box plot
categorical data
contract
contract error
data whose values are qualities that are not subject to the laws of arithmetic.
categorical data
contract
contract error
data row
a statement of the name, domain, and range of a function
contract
contract error
data row
data science
errors where the code makes sense, but uses a function with the wrong number or type of arguments
contract error
data row
data science
data types
a structured piece of data in a dataset that typically reports all the information gathered about a given individual
data row
identifier column
function
editor
the science of collecting, organizing, and drawing general conclusions from data, with the help of computers
data science
operator
method
purpose statement
a way of classifying values, such as: Number, String, Image, Boolean, or any user-defined data structure
data types
editor
error message
median
the left-most text box in the Editor where definitions for values and functions are written
definitions area
variable
threats to validity
spread
Match the following
domain
the type or set of inputs that a function expects
editor
software in which code can be written and evaluated
error message
information from the computer about errors in code
a sequence of steps that helps people document, test, and write functions
design recipe
header
function
histogram
shows the use of a function on specific inputs and the computation the function should perform on those inputs
example
data row
mean
method
any variable that could impact the "response variable", generally plotted on the x-axis of a scatter plot
explanatory variable
name
mode
data science
the shape of a relationship between two quantitative variables: whether the two variables together vary linearly or in some other way
form
header
histogram
data types
how often a particular value appears in a dataset
frequency
header
data types
data row
a relation from a set of inputs to a set of possible outputs, where each input is related to exactly one output
function
mean
median
mode
code that names a function, lists its variables, and states the expression to compute when the function is used
function definition
quartiles
r
range
a non-random subset of individuals chosen from a larger set, where the individuals belong to a specific group
grouped sample
Boolean
box plot
data row
the titles of each column of a table, usually shown at the top
header
name
outlier
form
a display of quantitative data that uses vertical bars positioned over bins (sub-intervals); each bar’s height reflects the count or percentage of data values in that bin.
histogram
method
mean
example
a column of unique values which identify all the individual rows (e.g. - student IDs, SSNs, etc)
identifier column
method
mode
form
the right-most text box in the Editor, where expressions are entered to be evaluated
interactions area
form
example
domain
summarizes the relationship (if linear) between two quantitative variables
line of best fit
pie chart
quartiles
mode
a type of analysis that models the relationship between two quantitative variables. The result is known as a regression line, or line of best fit.
linear regression
programming language
pie chart
histogram
a representation of the center, or 'typical' value in a set of numbers, calculated as the sum of those numbers divided by the number of values.
mean
median
method
operator
the middle element of a quantitative dataset
median
outlier
operator
r
a function that is only associated with an instance of a data type, which consumes inputs and produces an output based on that instance
(a)
the most commonly appearing categorical or quantitative value or values in a dataset
(a)
how we refer to a function or value defined in a language (examples: +, *, star, circle)
name
pie chart
histogram
header
the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
null hypothesis
mode
r
header
a symbol that manipulates two Numbers and produces a result
operator
outlier
pie chart
predictor function
observations whose values are very different from the other observations in the same data set, perhaps due to experimental error. Outliers can also be indicative of data belonging to a different population from the rest of the established samples.
(a)
Match the following
a display that uses areas of a circular pie’s slices to show percentages in each category
pie chart
a set of rules for writing code that a computer can evaluate
programming language
a concise, detailed description of what a function does with its inputs
purpose statement
number values for which arithmetic makes sense
quantative data
three values that divide a dataset into four equal-sized groups
quartiles
a function which, given a value from one dataset, makes an educated guess at a related value in a different dataset
predictor function
scatter plot
sample
mode
a number between −1 and 1 that measures the direction and strength of a linear relationship between two quantitative variables (also known as correlation value)
r
range
range of a dataset
outlier
the type or set of outputs that a function produces
(a)
the distance between minimum and maximum values
range of a dataset
sample
operator
method
the variable in a relationship that is presumed to be affected by the explanatory variable, generally plotted on the y-axis of a scatter plot
response variable
sample
r
quartiles
a set of individuals or objects collected or selected from a statistical population by a defined procedure
(a)
a display of the relationship between two quantitative variables, graphing each explanatory value on the x axis and the accompanying response on the y axis
scatter plot
r
quartiles
range
The aspect of a dataset - visible in a histogram or box plot - that describes which values are more or less common.
shape
mean
median
mode
lack of balance in a dataset’s shape, arising from more values that are unusually low or high. Such values tend to trail off, rather than be separated by a gap (as with outliers).
skew
range
quartiles
domain
the extent to which values in a dataset vary, either from one another or from the center
spread
symmetric
arguement
contract
Match the following
a number that measures spread of a data set using the typical distance of values from their mean
standard deviation
factors that can undermine the conclusion of a study
threats to validity
a letter or symbol that stands in for a value or expression
variable
using information from a sample to draw conclusions about the larger population from which the sample was taken
statistical inference
sample
programming language
quartiles
A symmetric distribution has a balanced shape, showing that it’s just as likely for the variable to take lower values as higher values.
symmetric
shape
domain
example
errors where the computer cannot make sense of the code (e.g. - missing commas, missing parentheses, unclosed strings)
syntax error
quartiles
r
sample
data scientists can be
anyone
men
women
dogs
