Test yourself with the skills you have acquired so far
In one-factor ANOVA, the residuals:
Are assumed to be correlated
We do not need any assumptions on the residuals
Are assumed to be normal
The null hypothesis in a one-factor ANOVA states that:
All the means are different
There are only two means that are the same
All the means are the same across levels
The two-factor ANOVA statistic to test for the significance of factor 𝜶 has a distribution:
Chi-square
Snedecor’s F
Student’s t
Which of the following most closely describes the machine learning approach to completing a task?
Follow step-by-step instructions
Keep trying at random until successful
Detect a pattern from historical data or previous trials and apply it
Which algorithm assumes that input features are mutually independent?
Decision Trees
NaĂŻve Bayes
Neural Networks
How many partitions is your training dataset divided into in a 5-fold CV? And how many times does the algorithm get trained in total?
5 partitions; 6 trainings
4 partitions; 5 trainings
5 partitions; 5 trainings
Name three different examples of using data science for good
adaptive charging
skills matching
monitoring social media for human rights impacts
Which of the following is not one of the principles of trustworthy AI?
Robustness
Transparency
Reproducibility
The Equalized Odds fairness metric requires that
TPR is the same for all demographic groups
All of the above
FPR is the same for all demographic groups
Typical text mining tasks include:
Modeling entity relation
Text categorization
Text clustering
All of the above
Is stemming the process of separating the prefixes and suffixes from words to derive the root word form and meaning?
True
True and False
False
Which one of the following word embeddings can be custom trained for a specific subject in NLP?
BERT
Word2Vec
All the above
GloVe