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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
one in every two
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "one in every two" is correct and usable in written English.
It can be used to indicate a statistical ratio or probability, often in contexts related to surveys, studies, or general observations about a population. Example: "According to the survey, one in every two people prefers coffee over tea."
✓ Grammatically correct
News & Media
Science
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Fifty years ago a single advertisement on commercial TV could grab one in every two viewers.
News & Media
One in every two people on the continent lives in extreme poverty.
News & Media
Conservative estimates put one in every two page views on MySpace containing content from Photobucket users.
News & Media
The abundance of SSRs (perfect and imperfect) in the unigenes can range from one in every 100 to one in every two unigenes depending on the minimum length (Table 1).
Science
"The fact that Mozambique has one of the highest rates of child marriage in the world, affecting almost one in every two girls, is an affront to human rights on a massive scale.
News & Media
One in every two adults in Korea have the Coupang app on their phone, the company claims.
News & Media
One in every two domestic stalkers, if they make a threat, will act on it.
News & Media
The forecast is even bleaker for Latinos: one in every two.
News & Media
One in every two shops in Kolonaki and Glyfada (two trendy Athens neighbourhoods) has closed, says Ms Partheni.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
A quarter of people who have the surgery will suffer complications and one in every two hundred will die from it.
News & Media
Less than one in every two thousand licensees had continued their non-compliance to the point of this triggering legal action by authorities.
Science
Expert writing Tips
Best practice
Use "one in every two" to emphasize the distribution or frequency within a specific group or population. For instance, "One in every two adults in the country has access to the internet" highlights the prevalence of internet access.
Common error
Avoid using "one in every two" when the sample size is too small to draw meaningful conclusions. For example, saying "One in every two people I asked liked the product" is misleading if you only asked four people.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "one in every two" functions as a quantifier, specifying a proportion or ratio. Ludwig AI indicates this usage is correct and common. It's used to express that a certain characteristic or event occurs in half of the instances.
Frequent in
News & Media
65%
Science
20%
Formal & Business
10%
Less common in
Wiki
2%
Encyclopedias
0%
Social Media
3%
Ludwig's WRAP-UP
In summary, the phrase "one in every two" is a common and grammatically sound way to express a 50% proportion. Ludwig AI confirms its correctness. Predominantly found in news, science, and formal business contexts, this quantifier serves to convey statistical information in an accessible manner. Alternatives include "half" or "50 percent". While its versatility is apparent, avoid using it with very small sample sizes to prevent misleading impressions. Top sources employing this phrase include The Guardian and The New York Times, further solidifying its reliability.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
fifty percent
Expresses the proportion directly as a percentage.
half
A simpler and more common way to say "one in every two".
50% of
Directly indicates a proportion of a whole.
one half of
A more formal way to express the same proportion.
every other
Highlights the alternating nature of the proportion.
in half the cases
Specifically refers to a 50% probability in events or situations.
proportion of 0.5
Uses a decimal to express the fraction.
fifty out of one hundred
Expresses the proportion as a ratio.
an equal chance
Focuses on the probability aspect rather than the specific ratio.
possibility of 50/50
Indicates an even split in possible outcomes.
FAQs
What does "one in every two" mean?
The phrase "one in every two" means 50 percent, or half, of a group or population. It's used to indicate a ratio or proportion.
How can I use "one in every two" in a sentence?
You can use "one in every two" to describe a statistic or probability. For example: "One in every two students passed the exam."
Which is more common, "one in every two" or "50 percent"?
"50 percent" is generally more common in formal writing and statistical reports, while "one in every two" is often used in more conversational or descriptive contexts.
What are some alternatives to saying "one in every two"?
Alternatives include "half", "50 percent", or "50% of" depending on the context.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested