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Statistics and probability test for hiring

See how candidates reason about the statistical evidence behind everyday data analysis.

10 dakika
15 soru
Intermediate
Multiple choice
Questions in İngilizce
Phone and desktop

Use this test free See the question formats

Kısa yanıt

The fundamentals of statistics and probability test measures working knowledge of descriptive statistics, probability, sampling and estimation, and statistical inference. Candidates summarize data from charts and tables, work with random variables, and interpret hypothesis tests and confidence intervals. It is designed for intermediate-level data analysts, data scientists, business and financial analysts, and other roles that work with data.

Ölçtüğü şey

Working knowledge of descriptive statistics, probability, sampling and estimation, and statistical inference.

Descriptive statistics

Candidates summarize data shown in charts and tables.

Probability and random variables

Candidates reason about probabilities and random variables.

Sampling and estimation

Candidates judge how samples are drawn and what they can estimate.

Inferential statistics

Candidates read results from hypothesis tests and confidence intervals.

Question formats

Multiple choice

The candidate: Reads a short situation, table or statement and picks the right answer, or every right answer.

You see: Whether the candidate knows the material well enough to apply it, not just recognize it.

15 questions in 10 minutes, served one at a time.

Roles this test fits

Data analysts, data scientists, business and financial analysts, machine learning engineers, and software or database roles that work with data and need to reason about it statistically.

Evidence for data-focused hiring

See chart and table reasoning
The questions show how candidates summarize data displays, evidence that a resume may not reveal.
Check interpretation, not just calculation
Hypothesis test and confidence interval questions show how candidates read statistical results.
Keep the task accessible
Every candidate may use the on-screen calculator and scratch paper. Charts label bars, points and axes in text, so answers do not depend on distinguishing colors.

What you get for each candidate

Example report (fictional data)Fundamentals of Statistics and Probability

%68Percentile 40. Benchmark: HireValid candidates, n = 486

Descriptive statistics%55

Probability and random variables%70

Sampling and estimation%65

Inferential statistics%80

Integrity ScoreYüksek güven

Stayed on the test tab throughout
No pasted answers
Answered at a steady pace

Scores, profiles and integrity signals are evidence for you to review alongside an interview, never an automatic decision.

Use this test free

Test integrity signals for review

Each candidate receives a different set of questions, with a different question order and shuffled answer options. The browser receives one question at a time, and answer keys stay on HireValid’s servers. Timing runs on the server, so reloading returns the same question with only the remaining time. Question text cannot be copied or selected, and a blocked copy attempt is recorded. HireValid may record signals such as time away from the test tab, pastes into answers and answers faster than a question can be read. An Integrity Score and evidence timeline summarize these signals for employer review; they do not make a decision. With candidate consent, an employer can add webcam photos at random moments. See our candidate-friendly hiring guide.

Yapay zekâyla kopya çekmeyi nasıl önlüyoruz · Integrity signals

Use the score as one piece of evidence

Review the score alongside a relevant work sample and a structured interview. For example, ask candidates to interpret data and explain their reasoning, then discuss how their approach relates to summarizing charts, sampling or inference. The score should inform a person’s review, not decide the hiring outcome. See our pre-employment testing guide and compare it with Data Science or Data-Driven Decision Making.

Yapılandırılmış mülakat soruları

Tell me about a time you summarized data to support a decision.
Listen for how they chose what to show and explained the result.
How would you decide whether a survey sample can support an estimate?
Listen for consideration of how the sample was drawn and what it represents.
Walk me through how you would interpret a confidence interval in a data report.
Listen for a clear reading of the result and its limits.
Describe a time a probability estimate affected your next step.
Listen for how they used the estimate to reason about an uncertain outcome.

Understand scoring and benchmarks

Fairness and accommodations

Questions use neutral settings such as production lines, website visits, clinic waiting times and survey responses, with no money symbols, sports, idioms or local knowledge, metric units, and names from many backgrounds. Notation is explained where it is used, any statistical table values a question needs are given in the question, and every candidate may use the on-screen calculator and scratch paper. Charts label every bar, point and axis in text, so no answer depends on telling colors apart.

You can give any candidate extra time as an accommodation. Results are evidence for a person to review, never an automatic decision.

Provisional: reliability is reported once 200 candidates have completed it.

Adil yaklaşımımızı okuyun

Test details

A short, timed test of the statistics and probability that everyday data analysis rests on. Candidates summarize data from charts and tables, work with probabilities and random variables, judge how samples are drawn and what they can estimate, and read the results of hypothesis tests and confidence intervals. Each question has a 40-second time limit.

Questions are in English.
Aids allowed: A calculator, Scratch paper.
Each question is answered once, in order, with no going back.
4 practice questions, 4 minutes, before the timed test.

Sık sorulan sorular

Which roles suit the fundamentals of statistics and probability test?+

It is aimed at intermediate-level data analysts, data scientists, business and financial analysts, machine learning engineers, and software or database roles that work with data. It checks reasoning about probability, sampling and estimation, and statistical inference.

What is in the fundamentals of statistics and probability test practice set?+

The practice set has four multiple-choice questions and takes four minutes. The test has 15 questions in 10 minutes, with a 40-second limit per question. Questions include summarizing charts and tables and interpreting statistical results.

Can candidates use aids on the fundamentals of statistics and probability test?+

Yes. Candidates may use an on-screen calculator and scratch paper. Notation is explained where it is used, and any statistical table values needed are provided in the question. The questions cover calculations and interpretation, including probability and confidence intervals.

How does the fundamentals of statistics and probability test handle accessibility?+

Questions use neutral settings, metric units and names from many backgrounds. Charts label each bar, point and axis in text, so color distinction is not needed. Questions cover data summaries, sampling and statistical inference without relying on local knowledge or idioms.