What is the difference between a traditional computer program and a ML model?

• A. ML models use rule-based IF/THEN statements

• B. ML models use a data-driven approach

• C. They are the same; the only difference is that ML models use more data

Which one of the following applications would most benefit from using an ML model?

• A. A login system that checks that the correct password has been entered for a valid user

• B. An online calculator that converts miles to kilometres

• C. A text prediction application that saves you time by predicting the next word you want to use in a sentence

AI applications can be used to generate works of art. What data does the model need to be able to generate the art?

• Vast quantities of example artwork

• Human-programmed IF/THEN rules

• One image to copy from each known style of art

A popular music streaming service has been designed using machine learning. Which one of the following services would benefit from using a data-driven approach?

• Recommending a playlist based on the songs you commonly listen to

• Adding a song to your favourites when you select the ‘thumbs up’ icon

• Calculating how many minutes of music you listen to during the day

Which type of machine learning involves the use of pre-labelled data?

• Supervised learning

• Unsupervised learning

• Reinforcement learning

A machine learning model has been developed to identify birds from sound alone. Part A: Whilst testing and evaluating the model, developers have found that the model is not able to identify blackbirds. Which two of the following actions should the developers take to improve their model?

• Add more audio samples of all known varieties of birds

• Add audio samples of humans and other animals in a variety of environments

• Add audio samples of blackbirds in different conditions such as close up or far away

Part B: Whilst testing and evaluating the model, the developers found the following results. Which one of them is an indication of bias in the machine learning model?

• A. The app is 96% accurate for blackbirds and 48% accurate for pigeons

• B. The average accuracy across all birds is 68%

• C. The model is unable to identify human speech from sound

Which of the following types of data would be suitable for a decision tree?

• Numeric

• Audio

• Image

Which two of the following are true about decision tree machine learning models?

• Choosing accurate splits is impossible by any other method

• Machine learning decision trees are always 100% accurate

• They are suitable for handling large data sets with many features

• They are able to adapt conditions based on new training data

Place the stages of the AI project lifecycle in order.

• A. Evaluating the model, B. Explaining the model, C. Preparing the data, D. Testing the model, E. Training the model, F. Defining the problem

• A. Defining the problem, B. Preparing the data, C. Training the model, D. Evaluating the model, E. Testing the model, F. Explaining the model

• A. Preparing the data, B. Defining the problem, C. Training the model, D. Testing the model, E. Evaluating the model, F. Explaining the model

• A. Training the model, B. Preparing the data, C. Defining the problem, D. Evaluating the model, E. Testing the model, F. Explaining the model