Data Types
Give an example of semi structured data type.
XML, JSON files
What is Model Assessment?
Evaluation of a model's performance using parameters like accuracy, precision, and recall.
When an hypothesis is formulated, ___________ is the next step?
Hypothesis testing
_________ uses visuals to communicate insights from data.
Data Storytelling
Why is testing important in null hypothesis?
It aims to confirm or reject the null hypothesis.
What is 'Time Series' in data types?
It is collected over a long period of time.
What does model training help in?
It helps the model to make decisions which are more accurate and meaningful.
What is the benefit of data visualization?
It provides an accessible way to see and understand tends, outliners, and patterns in data.
Significance Testing
What are P-values?
It evaluates how likely results are due to chance.
What is the data type of spreadsheets, databases?
Structured
What does regression algorithm predict with example?
It predicts continuous values like prices.
Which library is used for data visualization?
matplotlib.pyplot
What is the formula for Accuracy?
Accuracy = (Correct predictions)/(Total Predictions)
'Coffee has no effect on productivity', which hypothesis is this?
Null hypothesis
It can automatically learn patterns from data without explicit programming. What is it?
Machine Learning
________ algorithms group similar data points together.
'Increased study hours lead to better exam scores for students', which is the independent variable in the hypothesis?
Study Hours
____________ is the process of making an educated guess, or assumption about a relation between variables based on existing data or prior knowledge.
Hypothesis Formulation
What is 'Type II Testing'?
Failing to reject when it is actually false.
What happens after data preprocessing?
A suitable machine learning algorithm is chosen based on the problem at hand.
What is the formula for Precision in Machine learning?
Precision=(True Positives)/(True Positives + False Positives)
Give an example of a language that helps us get data from databases.
SQL
____________ is the harmonic mean of Precision and Recall.
F1 Score
P-values means strong evidence against the ______ hypothesis.
Null