Descriptive Statistics
Which measure of central tendency is least affected by outliers?
Median
The function used to combine values in R into a vector
c() / concatenate()
What Statistical measure is used to measure average shoe size?
mode
Which diagram is used to represent parts of the whole?
Pie chart
The probability Distribution of a single coin toss is given by
Bernoulli
A distribution with a long right tail is said to be
Positively skewed
The Python library often used for data analysis and manipulation?
Pandas
Process of selecting a representative subset of the population
(sampling)
A type of bar graph that displays numerical values in segments within each bar, where each segment represents a different part of the whole or a sub-category. It's used to visualize the breakdown of a total across different groups
Stacked bar
The distribution often used to model waiting time of events is the
Exponential distribution
The ratio of standard deviation to mean, often expressed as a percentage is known as
Coefficient of variation
The function that searches for a value in the columns of a table
VLOOKUP
What measure will you use to determine the strength of the association between House prices and variables like number of rooms and area?
R square
A graph where rectangles meet each other continuously with no gaps and represents frequency is a
Histogram
Students t distribution was invented by
William Gosset
A flat topped distribution compared to the normal is said to be
Playkurtic
The feature that lets you filter pivot table data interactively
Slicer
What Statistical tools will help you predict categorical values such as whether an applicant for a loan is “good” or “bad” based on certain factors like their credit score, income etc?
logistic regression
The graph used to display bivariate frequency in a grid of colored cells is called
Heat map
Name any one memoryless distribution
Exponential or Geometric
Arrange the following in ascending order:
Arithmetic Mean, Geometric mean, Harmonic mean
HM<GM<AM
In R the comprehensive Archive for sharing packages is called
CRAN
The estimation technique used to minimize sum of squared residuals in regression
Ordinary least squares
A type of representation that splits each numerical value, typically separating the first and second digit
Stem and leaf
Which distribution has undefined mean and variance?
Cauchy