Inference Data — Learn free

Self-check

Questions 1–10 of 10

1. What is inference data?
Question 1A. Data produced by the machine-learning process of drawing conclusions, making predictions or generalising from a features datasetB. A list of database tablesC. Data that has been deletedD. The raw text of a documentE. A backup of the training data
2. In the school example, what does the smaller group of students you ask represent?
Question 2A. The populationB. A sampleC. A databaseD. An outlierE. A prediction
3. In simple terms, inference is described as:
Question 3A. Asking every single person before decidingB. Making smart guesses about everyone by looking at a few representative people firstC. Refusing to guess without complete dataD. Copying data from one system to anotherE. Sorting people by name
4. Why does a sample allow useful conclusions about the whole group?
Question 4A. Because it is larger than the populationB. Because the sample is assumed to be representative of everyone elseC. Because computers are fastD. Because samples never contain errorsE. Because it is stored in the cloud
5. Inference is described as a fundamental aspect of which discipline?
Question 5A. Statistical reasoning and data analysisB. Graphic designC. Network cablingD. Accounting standardsE. Project scheduling
6. In machine learning, what is a trained model doing when it predicts on new, unseen data?
Question 6A. Deleting the training dataB. Generalising patterns learned from training data to new instances — an act of inferenceC. Memorising the new dataD. Encrypting the resultsE. Retraining from scratch every time
7. Which is a reason for using a sample rather than surveying everyone?
Question 7A. Asking every single person could be too much workB. Samples are always more accurateC. The population does not existD. Databases cannot hold everyoneE. Everyone gives the same answer
8. Inference often involves the application of what?
Question 8A. Statistical methodsB. Paint coloursC. Legal contractsD. Hardware upgradesE. Font choices
9. What is the relationship between the features dataset and inference data?
Question 9A. Inference data is produced by analysing the features datasetB. They are the same thingC. The features dataset is produced from inference dataD. Neither is used in machine learningE. Inference data replaces the features dataset
10. Which statement best describes inference from data?
Question 10A. It is a crucial step in extracting meaningful insights from dataB. It is an optional final formatting stepC. It is only relevant to spreadsheetsD. It requires no data at allE. It replaces data collection entirely