Test yourself with the skills you have acquired so far
In one-factor ANOVA, the residuals:
We do not need any assumptions on the residuals
Are assumed to be normal
Are assumed to be correlated
The null hypothesis in a one-factor ANOVA states that:
All the means are different
All the means are the same across levels
There are only two means that are the same
The two-factor ANOVA statistic to test for the significance of factor đťś¶ has a distribution:
Chi-square
Studentâ€™s t
Snedecorâ€™s F
Which of the following most closely describes the machine learning approach to completing a task?
Follow step-by-step instructions
Detect a pattern from historical data or previous trials and apply it
Keep trying at random until successful
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?
4 partitions; 5 trainings
5 partitions; 5 trainings
5 partitions; 6 trainings
Name three different examples of using data science for good
adaptive charging
monitoring social media for human rights impacts
skills matching
Which of the following is not one of the principles of trustworthy AI?
Transparency
Robustness
Reproducibility
The Equalized Odds fairness metric requires that
TPR is the same for all demographic groups
FPR is the same for all demographic groups
All of the above
Typical text mining tasks include:
Modeling entity relation
Text clustering
Text categorization
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 and False
False
True
Which one of the following word embeddings can be custom trained for a specific subject in NLP?
BERT
All the above
Word2Vec
GloVe