Level 5 — Advanced · Technical & Evidence-Based Writing

Task 55: Writing About Data Precisely

Turn a number into a sentence that says what it measures, what it's compared with, and what conclusion it actually supports — the writing side of the data-reading strategy Lesson 55 taught.

advanced 20 min data-interpretation quantitative-writing advanced-writing

Learning Objectives

By the end of this task, you should be able to:

  • State what a number actually measures, not just the number itself
  • State what it's being compared with, to give the number meaning
  • Avoid a conclusion the number doesn't actually support

Introduction

Lesson 55 taught you not to stop at "what number does this show" but to ask what it measures, what it's compared with, how it changed, how certain it is, and what conclusion it actually justifies. Writing about data means doing that thinking yourself, in the sentence, before the reader ever sees the raw number.

The Rule, for Writing

Core Concept

A weak data sentence just states a figure: "Sales were $50,000 in March." A strong one gives the number context — what it's measuring, what it's being compared with — and draws only the conclusion the comparison actually supports, without inflating it into something bigger.

Example

Container throughput at the terminal rose from 1,200 to 1,350 TEU per week over the quarter — an 12.5% increase compared with the same period last year. That's enough to say demand grew; it isn't, on its own, enough to say the new crane reduced turnaround time, since throughput and turnaround are different measurements.

Your Turn

Your Turn

90-140 words20 min

Take one number you know from your own work or studies (a metric, a score, a statistic) and write a short passage that states what it measures, what it's compared with (an earlier period, a target, another group), and one conclusion the number genuinely supports — stopping short of a bigger claim it doesn't actually prove.

Vocabulary in Context

measureverbformal

to state precisely what a number is tracking (পরিমাপ করা)

Often with measure performance, how it is measured, measure of

“State clearly what the figure measures: waiting time, not turnaround time.”

overclaimverbformal

to state a conclusion stronger than the evidence actually supports (অতিরিক্ত দাবি করা)

Often with overclaim the results, risk overclaiming, accused of overclaiming

“The press release overclaims: six weeks of data cannot prove a permanent saving.”

Model Answer

Show a model answer

Average page load time fell from 3.2 seconds to 1.8 seconds after the new caching system was deployed — a drop of nearly 44% compared with the month before the change. That's enough evidence to say the caching system reduced load time for this site during this period. It is not, on its own, enough to claim the change increased sales, since load time and sales are two different measurements that would need their own comparison to connect.

Self-Check

Self-Check

  • Did you state clearly what the number measures?
  • Did you give a comparison point (an earlier period, a target, another group)?
  • Does your conclusion stay within what the number actually supports?
  • Did you avoid connecting the number to a bigger claim it doesn't prove?

Next: Writing 56 — Building a Quantitative Argument: using a number as genuine support for a claim, not decoration for one.