Featured resources have utility and evidence scores of at least 80, a full-text review, checked claims and a next action. Featured listings have a specific programme, open status, deadline, requirements and live official evidence. This describes information completeness, not employer desirability. Other public items remain in the standard collection; original starters are labelled as such.
Roles and official channels
1 specific listings match, sorted by verification time. Verification time is not publication time or a guarantee of current availability. Confirm on the official site before applying.
Project Intern - Deloitte Digital (Business Analyst Role) - Consulting - HK at Deloitte Touche Tohmatsu. The employer’s official page was checked on 2026-10-21 and showed an active application route.
Hong Kong
Closes 9 Nov 2026 · Source: HKUST Career Center Job Board
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Read the open handbook for reproducible, ethical and collaborative data science, from project design to communication.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want a bounded original explanation of the selected concepts.
Learning goals: Identify OS,interpreter,dependencies/configuration and input/source/output hashes needed for repeatability.; Use a source-linked original small scenario to record two-copy equality,changed input and empty-input behaviour.; Explain why one runtime equality is not cross-platform reproducibility or learner mastery.
L2 · en · Source practice details on resource page
Next action: Open the actual Reproducible Environments chapter: Prerequisites, Summary, computational environment and Motivation. Use a small analysis you already control, record its environment and file fingerprints, repeat a clean copy, change one input and inspect the empty-input case.
Official pandas 3.0.6 documentation for missing-value reductions, merge keys and deduplication; reduction defaults do not fill missing cells.
Learning goals and audience
Suitable for: Readers preparing to explain tabular-data behaviour who meet the stated prerequisites.
Learning goals: State what pandas returns for the sum and the product of an all-NA series, and say why that is dangerous for a revenue metric.; Distinguish count(), size and nunique() as candidate denominators and pick one for a stated metric.; Write, in one sentence, what the denominator of your own metric counts.
L2 · en · Source practice details on resource page
Next action: Open Calculations with missing data, then Series.sum skipna and min_count. State which values contribute to a known subtotal and what complete-total policy you intend.
Official SQLite reference for ordinary NULL comparisons, outer-join filters, DISTINCT, grouping and aggregate denominators.
Learning goals and audience
Suitable for: Readers preparing to explain tabular-data behaviour who meet the stated prerequisites.
Learning goals: State, for a given SQLite predicate, whether a row with a NULL operand is returned, and say why.; Rewrite a filter that uses '= NULL' into one that behaves as intended, using IS NULL or IS.; Predict whether a NOT IN test against a subquery containing NULLs returns any rows, then confirm it by running the query.
L1 · en · Source practice details on resource page
Next action: Open SQL Language Expressions §2 and §8. Explain how ordinary =, IS NULL and NOT IN behave when a value is NULL.
Find free full-length sample tests and worked solutions.
Next action: Take one free test and review the worked solution for every missed question.
Global preparation · Body ReviewedReviewed
Source: www.practiceaptitudetests.com
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All five levels include a starter explanation, worked example, task and self-check answer. Complete the output before advancing. Existing academy modules are linked for deeper study.
Practise ten public sample questions and log error causes. Record introductions at 60 and 90 seconds; check camera, microphone and connection. Follow the actual invitation for timing.
Choose a real public experience, compare backgrounds and draft three questions, an invitation and a thank-you. Track confirmed and unconfirmed information.
Prepare four truthful stories: collaboration, conflict, failure and initiative. Record each in 90 seconds, then explain and defend a question from this line’s L2–L4 lessons.
With at least one partner, compare two business options and deliver a one-page recommendation plus a five-minute presentation. Observe specific contributions.