ChallengeHealthcareSQL+20 XP

Data Analytics case 24: SQL averages for Healthcare

Scenario

You are a data professional. A children's hospital has an issue: staff argue about what a normal wait_minutes looks like. As a Reporting Analyst, you are tasked to solve it.

Question

Find the average value per group.

Your task

Read the problem
Write your solution in the editor
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Deliverable: Average per group
On success it is published as its own portfolio project

SQL averagesData AnalyticsProblem solving

Read the simple theory: Root-cause analysis

Data Analytics · Problem Solving & Root Cause Analysis — question 24 of 30

Finish all 30 to earn a certificate

1. Choose your dataset

Pick an industry and a size. Your code and results change to match.

IndustrySize

sql editorclinic_visits

Snippets

💡 Explain my whole code, line by line (hover any word in the editor for a tip)

🌈 In short — no coding words

📂 Opens the "clinic_visits" table→✅ Shows you the answer

Altogether: this query reads your industry table, picks what you need, and shows the answer as rows.

Start typing to see suggestions. Press Enter to use one. Red marks show the line to fix. Drag a bottom corner horizontally and vertically to resize.

Type your code here ↓Tap or click inside the box to start

✍️ Tap here to type

Dataset & schema

clinic_visits

IndustryDataset size

The tiny starter data. Bigger data scrolls.

Fields

visit_id	ward	wait_minutes
V1	Kids	20
V2	Adults	45
V3	Kids	15
V4	Elderly	30

Healthcare data only.

attempts: 0

▶ Output terminal

$ Press “Check my answer” — results appear here.

Your next steps

Each item turns green when your answer includes it.

1 left

Averages