Data Analyst
Data visualisation and BI questions
139 questions on Data visualisation and BI for data analysts, easiest first.
Easy 41
- Best chart for a trendeasy
- Chart for 12 product categorieseasy
- Dimensions vs measureseasy
- Ad spend against sales by cityeasy
- Ranking 15 products with long nameseasy
- Busy hours across the weekeasy
- Explaining a profit changeeasy
- Showing sign-up drop-offeasy
- A KPI number with no contexteasy
- Twelve lines on one charteasy
- Spread of delivery timeseasy
- Sales by category and sub-categoryeasy
- Why avoid a 3D pieeasy
- Matching lines to a legendeasy
- A better chart titleeasy
- Order of bars for 10 brancheseasy
- Making one region stand outeasy
- Number format for an Indian audienceeasy
- Power Query or DAX for cleaningeasy
- Months in alphabetical ordereasy
- Why build a date tableeasy
- What a slicer doeseasy
- From a store bar to store detailseasy
- Margin % when sales is zeroeasy
- Refreshing from an office SQL Servereasy
- Each manager sees only their regioneasy
- Blue and green pills in Tableaueasy
- Live connection or extracteasy
- Letting users try a discount rateeasy
- Clicking a map to filter a tableeasy
- Bombay and Mumbai as one cityeasy
- Finding the slow visualeasy
- A button that switches chart and tableeasy
- First question before building a dashboardeasy
- A dashboard for a warehouse shift leadeasy
- Where to put the main KPIseasy
- Are these numbers from todayeasy
- Cleaning up a busy charteasy
- UPI is blue here and orange thereeasy
- What the box in a box plot showseasy
- Box plots per city in Pythoneasy
Medium 55
- Designing an executive dashboardmedium
- Measure or calculated columnmedium
- Bar chart that exaggeratesmedium
- Why use a 7-day moving averagemedium
- Shaping a Power BI modelmedium
- Actual against target for 12 KPIsmedium
- Change between two yearsmedium
- Which complaint types matter mostmedium
- Comparing the middle of stacked barsmedium
- Mix change or volume changemedium
- Zero baseline for bars and linesmedium
- Cities from 2,000 to 20 lakh usersmedium
- A scatter plot that is a solid blobmedium
- Two y-axes on one chartmedium
- A map that just shows populationmedium
- Colour for an ordered measuremedium
- Above and below targetmedium
- Conversion from 20% to 25%medium
- Comparing growth of very different sizesmedium
- Typical salary on a dashboardmedium
- Retention by sign-up monthmedium
- Diwali in different monthsmedium
- A daily chart that jumps aroundmedium
- A running total that always goes upmedium
- Showing a target on a trendmedium
- Every row shows UAE salesmedium
- Revenue from quantity and pricemedium
- Share of total for each productmedium
- Last year's sales show blankmedium
- Sales by ship date and order datemedium
- Turning on both-direction filteringmedium
- Import or DirectQuerymedium
- Refreshing only recent datamedium
- A refresh that pulls the whole tablemedium
- A timestamp column bloating the modelmedium
- Hidden date tables in the modelmedium
- One chart should ignore a selectionmedium
- One chart, user-chosen measuremedium
- Average sales per customer by regionmedium
- Region total on each month rowmedium
- Running total going the wrong waymedium
- Sales doubled after a join in Tableaumedium
- How Tableau blends a second sourcemedium
- Top 10 products shows only 4medium
- RLS without one role per regionmedium
- Layering detail in a dashboardmedium
- Light grey labels on whitemedium
- A dashboard on a phonemedium
- A new user's empty chartmedium
- Labels on every point of a busy linemedium
- Three numbers for active usersmedium
- A histogram that hides two groupsmedium
- Showing a sales forecast honestlymedium
- Click products to compare with the restmedium
- Row-level security in Tableaumedium
Hard 43
- Correlation near zerohard
- Total row is less than the sumhard
- FIXED LOD ignores a filterhard
- East sales on the West rowhard
- A bubble twice as bighard
- Which encoding people judge besthard
- Better in every segment, worse overallhard
- Average conversion across two storeshard
- A store with 100% conversionhard
- The same data looks dramatic or flathard
- Two lines that seem to move togetherhard
- A trend that depends on the start datehard
- Error bars that overlaphard
- Pie labels adding up to 101%hard
- Reading the top layer of a stacked areahard
- Is today's spike unusualhard
- A moving average that reacts latehard
- Big regions dominating a maphard
- Charting a 5-point surveyhard
- Customer counts that do not add uphard
- A variable that ignores CALCULATEhard
- Red sales showing on every colour rowhard
- Average monthly sales for a yearhard
- 40 measures for YTD and last yearhard
- Same total on every customer rowhard
- Filtering months but keeping % of totalhard
- A YTD line that should reset each yearhard
- An asterisk instead of a valuehard
- A DirectQuery table visual errors outhard
- Fast summaries over a DirectQuery facthard
- What Direct Lake mode doeshard
- A matrix that suddenly shows every producthard
- A manager sees every regionhard
- Monthly budget next to daily saleshard
- Churn shown as 4.2817%hard
- Gaps in time squeezed outhard
- Month-on-month swings during Ramadanhard
- Worst stores improved after coachinghard
- A heatmap where everything looks the samehard
- Income bands of different widthshard
- Call times drop, complaints risehard
- Total Sales that follows slicershard
- Share of total with CALCULATEhard