---
title: "AP Statistics Question 2 FRQ Practice"
description: "42 Multi-Focus Question on Practices 3 and 4s written in the AP format, each scored part by part."
canonical: "https://fiveable.me/ap-stats/frqs/frq-2"
type: "frq-type-practice"
subject: "AP Statistics"
---

# AP Statistics Question 2 FRQ Practice

## What the Question 2 FRQ asks

FRQ 2 is the second of four FRQs on the AP Statistics exam, a multi-focus question on Practices 3 and 4 that centers on analyzing data and interpreting results in context. It has four or five parts, and each question splits its 10 points its own way. The table shows an even split for reference, not the split on any one question.

- **10 points**: across four or five parts
- **12.5%**: of your exam score
- **90 min**: for all four FRQs

| Part | What it asks | Points |
| --- | --- | --- |
| A: Identify | Name a method, value, or feature of the data in context | 2 |
| B: Calculate or check | A calculation, or conditions verified from the study | 2 |
| C: Interpret | What a result means in context, often after a calculation | 2 |
| D: Justify | A conclusion or claim backed by evidence from the data | 2 |
| E: Explain | A follow-up that extends the scenario, when there is a fifth part | 2 |

## How Question 2 FRQ practice works

1. **Read the full question.** The scenario, tables, and graphs, with every part laid out the way the exam shows them.
2. **Write on a 23-minute timer.** A pace that fits all four questions into the 90-minute section. Pause it or turn it off, and your response saves as you go.
3. **Submit for a score out of 10.** Your response is scored against the scoring guidelines written for that question. Your first score is included.

## All 42 questions

### Unit 1: Exploring One-Variable Data and Collecting Data (7)
- [Video streaming application battery drain comparison](/ap-stats/frq-practice?id=6a67c9af2de38de8e968cdc2&type=frq-2-multi-focus-on-practices-3-and-4)
- [Shipping delivery times, outliers, distribution shape](/ap-stats/frq-practice?id=6a67cc712de38de8e968cf6c&type=frq-2-multi-focus-on-practices-3-and-4)
- [Coral reef temperature sampling bias and distribution analysis](/ap-stats/frq-practice?id=6a67cb172de38de8e968cea0&type=frq-2-multi-focus-on-practices-3-and-4)
- [Dissolved oxygen levels in watershed streams](/ap-stats/frq-practice?id=6a67cbd52de38de8e968cf0e&type=frq-2-multi-focus-on-practices-3-and-4)
- [Patient wait times at two urgent care clinics](/ap-stats/frq-practice?id=6a67cc342de38de8e968cf4c&type=frq-2-multi-focus-on-practices-3-and-4)
- [Monthly rent distribution comparison between neighborhoods](/ap-stats/frq-practice?id=6a67cd7f2de38de8e968d016&type=frq-2-multi-focus-on-practices-3-and-4)
- [Drought-resistant corn yield distribution and outliers](/ap-stats/frq-practice?id=6a67cdbe2de38de8e968d037&type=frq-2-multi-focus-on-practices-3-and-4)

### Unit 2: Probability, Random Variables, and Probability Distributions (12)
- [Subscription retention, missing ingredients, meal preparation time](/ap-stats/frq-practice?id=6a67c9942de38de8e968cdb0&type=frq-2-multi-focus-on-practices-3-and-4)
- [Homeowners insurance claims by region and approval status](/ap-stats/frq-practice?id=6a67c9d52de38de8e968cdd5&type=frq-2-multi-focus-on-practices-3-and-4)
- [Organic food preservative effectiveness and shelf life](/ap-stats/frq-practice?id=6a67caf62de38de8e968ce7f&type=frq-2-multi-focus-on-practices-3-and-4)
- [Sea otter foraging behavior and health conditions](/ap-stats/frq-practice?id=6a67cc912de38de8e968cf7e&type=frq-2-multi-focus-on-practices-3-and-4)
- [Peer-tutoring program effectiveness and course outcomes](/ap-stats/frq-practice?id=6a67c9592de38de8e968cd8f&type=frq-2-multi-focus-on-practices-3-and-4)
- [Wheat yield distribution and outlier analysis](/ap-stats/frq-practice?id=6a67ca442de38de8e968ce13&type=frq-2-multi-focus-on-practices-3-and-4)
- [Emergency department triage protocols and patient outcomes](/ap-stats/frq-practice?id=6a67ca732de38de8e968ce27&type=frq-2-multi-focus-on-practices-3-and-4)
- [Conditional probability, independence, expected value, normal distribution](/ap-stats/frq-practice?id=6a67caae2de38de8e968ce53&type=frq-2-multi-focus-on-practices-3-and-4)
- [Microplastic concentration and dissolved oxygen in lake water quality](/ap-stats/frq-practice?id=6a67cb652de38de8e968cec7&type=frq-2-multi-focus-on-practices-3-and-4)
- [User engagement across subscription and device types](/ap-stats/frq-practice?id=6a67cba62de38de8e968ceee&type=frq-2-multi-focus-on-practices-3-and-4)
- [User engagement, account type, purchase behavior](/ap-stats/frq-practice?id=6a67cbe22de38de8e968cf16&type=frq-2-multi-focus-on-practices-3-and-4)
- [Watershed pollution monitoring and probability analysis](/ap-stats/frq-practice?id=6a67cccf2de38de8e968cfa2&type=frq-2-multi-focus-on-practices-3-and-4)

### Unit 3: Inference for Categorical Data: Proportions (10)
- [New versus standard checkout interface completion rates](/ap-stats/frq-practice?id=6a67c9a32de38de8e968cdbb&type=frq-2-multi-focus-on-practices-3-and-4)
- [Peer-tutoring versus standard help effectiveness](/ap-stats/frq-practice?id=6a67cb0d2de38de8e968ce92&type=frq-2-multi-focus-on-practices-3-and-4)
- [Coral bleaching prevalence across ocean basins](/ap-stats/frq-practice?id=6a67cc4a2de38de8e968cf5f&type=frq-2-multi-focus-on-practices-3-and-4)
- [Defective microchip proportions between etching processes](/ap-stats/frq-practice?id=6a67cd482de38de8e968cfee&type=frq-2-multi-focus-on-practices-3-and-4)
- [Mindfulness exercise effects on memory recall](/ap-stats/frq-practice?id=6a67cd872de38de8e968d01a&type=frq-2-multi-focus-on-practices-3-and-4)
- [Microplastic prevalence comparison between two freshwater lakes](/ap-stats/frq-practice?id=6a67c9f52de38de8e968cde9&type=frq-2-multi-focus-on-practices-3-and-4)
- [Warm-up routine effectiveness on hamstring strain rates](/ap-stats/frq-practice?id=6a67caa42de38de8e968ce48&type=frq-2-multi-focus-on-practices-3-and-4)
- [Coral bleaching rates across ocean regions](/ap-stats/frq-practice?id=6a67cbf32de38de8e968cf27&type=frq-2-multi-focus-on-practices-3-and-4)
- [Natural versus synthetic bread preservative effectiveness](/ap-stats/frq-practice?id=6a67cd042de38de8e968cfca&type=frq-2-multi-focus-on-practices-3-and-4)
- [Organic pesticide effectiveness comparison](/ap-stats/frq-practice?id=6a67ce0f2de38de8e968d060&type=frq-2-multi-focus-on-practices-3-and-4)

### Unit 4: Inference for Quantitative Data: Means (11)
- [Battery drain reduction from dark mode feature](/ap-stats/frq-practice?id=6a67ccfb2de38de8e968cfc9&type=frq-2-multi-focus-on-practices-3-and-4)
- [Shell thickness variation across aquatic ecosystems](/ap-stats/frq-practice?id=6a67cda12de38de8e968d027&type=frq-2-multi-focus-on-practices-3-and-4)
- [Screen time effects on sleep duration](/ap-stats/frq-practice?id=6a67ce512de38de8e968d079&type=frq-2-multi-focus-on-practices-3-and-4)
- [Environmental policy effectiveness on air quality emissions](/ap-stats/frq-practice?id=6a67cec42de38de8e968d0a1&type=frq-2-multi-focus-on-practices-3-and-4)
- [Osprey wingspan differences between coastal regions](/ap-stats/frq-practice?id=6a67cffb2de38de8e968d103&type=frq-2-multi-focus-on-practices-3-and-4)
- [Restaurant portion sizes: manual versus digital scale](/ap-stats/frq-practice?id=6a67d0ee2de38de8e968d13f&type=frq-2-multi-focus-on-practices-3-and-4)
- [Advanced versus standard filtration system effectiveness](/ap-stats/frq-practice?id=6a67d2182de38de8e968d174&type=frq-2-multi-focus-on-practices-3-and-4)
- [Repair estimate differences between adjusters and shops](/ap-stats/frq-practice?id=6ab2babd219804ef99da98aa&type=frq-2-multi-focus-on-practices-3-and-4)
- [Aerodynamic helmet designs and cycling performance times](/ap-stats/frq-practice?id=6a67d2a02de38de8e968d184&type=frq-2-multi-focus-on-practices-3-and-4)
- [Spaced-repetition software versus traditional flashcard learning](/ap-stats/frq-practice?id=6a8f84acdf46b6796e734e46&type=frq-2-multi-focus-on-practices-3-and-4)
- [Interactive video player effects on viewing time](/ap-stats/frq-practice?id=6a8f8518df46b6796e734e61&type=frq-2-multi-focus-on-practices-3-and-4)

### Unit 5: Regression Analysis (2)
- [Peer tutoring hours and chemistry exam performance](/ap-stats/frq-practice?id=6a67cd662de38de8e968d003&type=frq-2-multi-focus-on-practices-3-and-4)
- [Curing temperature and polymer tensile strength relationship](/ap-stats/frq-practice?id=6a67ce512de38de8e968d078&type=frq-2-multi-focus-on-practices-3-and-4)

## Sample question

**Video streaming application battery drain comparison**

A software development company is testing two different versions of a video streaming application, Version A and Version B, to evaluate their impact on smartphone battery life. The company randomly assigned 80 identical, fully charged smartphones to run either Version A (40 phones) or Version B (40 phones) continuously for one hour. The percentage of battery drained during the hour was recorded for each smartphone. The summary statistics are shown in Table 1, and parallel boxplots of the data are shown in Figure 1.

Data Tables:
  Headers: Version | n | Mean | Standard Deviation | Min | Q1 | Median | Q3 | Max
  A | 40 | 13.8 | 3.1 | 8.2 | 11.5 | 13.4 | 15.6 | 22.1
  B | 40 | 9.1 | 2.4 | 5.1 | 7.2 | 8.8 | 10.4 | 14.5

Part A (0 points):
  Prompt: Before conducting the randomized experiment described above, the company considered an observational study in which 80 employees would volunteer to install one of the two versions on their personal smartphones. Identify a potential confounding variable with this proposed observational study design and explain how it could affect the comparison of battery drain between the two versions.

Part B (0 points):
  Prompt: Using the summary statistics in Table 1, determine if the maximum battery drain of 22.1% for Version A is an outlier. Justify your answer using the 1.5 × IQR rule. Show your work.

Figure 1:
  Type: boxplot
  Caption: Figure 1. Parallel boxplots of percentage of battery drained in 1 hour for Version A and Version B (Battery Drain by Version).
  URL: https://kcbwzropdukwhmmvdylp.supabase.co/storage/v1/object/public/frq_stimulus/ap-stats/2fdf03cb-2bbb-4c46-839d-ab7cb05796f6_fig1.jpg
  Placement: before-part
  Part Letter: C

Part C (0 points):
  Prompt: Based on Figure 1 and Table 1, compare the distributions of battery drain for Version A and Version B.

Part D (0 points):
  Prompt: One smartphone running Version B had a battery drain of 14.5%. Calculate and interpret the z-score for this battery drain in the context of the Version B data.

Image URLs (1):
  - https://kcbwzropdukwhmmvdylp.supabase.co/storage/v1/object/public/frq_stimulus/ap-stats/2fdf03cb-2bbb-4c46-839d-ab7cb05796f6_fig1.jpg

## Questions

**How many responses can I get scored?**

You can read every question without a plan. Your first scored response is included. A plan unlocks unlimited scoring.

**What does Practices 3 and 4 mean?**

Practices are the skill areas in the course framework. FRQ 2 focuses on analyzing data and interpreting results.

**How is FRQ 2 different from FRQ 4?**

Both are worth 10 points. FRQ 2 focuses on analyzing data and interpreting results. FRQ 4 combines data collection, analysis, and interpretation, and its parts often build toward one conclusion.

**How much should I write for each part?**

Enough to make your reasoning visible. Name the method, show the work, and state the result in context, with the variable and population.

**Can I use a calculator and the formula sheet?**

Yes. The practice screen has a graphing calculator and the AP Statistics formulas and tables, which you also get on exam day.

## Related

- [Question 2 FRQ exam guide](/ap-stats/ap-statistics-exam/ap-stats-frqs-free-response/study-guide/ap-stats-frqs-free-response)
- [AP Statistics Question 4 FRQ practice](/ap-stats/frqs/frq-4)
- [AP Statistics FRQs](/ap-stats/frqs)
- Any question by id: the `get_frq` tool on the [Fiveable MCP server](/mcp/docs)

## About This Document

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- [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns
- [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing
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