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The phrase "age vary from" is not correct in English.
Did you mean "ages vary from"? If this is the case, you can use this phrase when discussing a range of ages in a specific context, such as demographics or studies.
Example: "The participants in the study had ages that vary from 18 to 65 years old."
Alternatives: "ages range from" or "age spans from".
Exact(1)
The five mating patterns (MP), for which the degrees of assortative mating by age vary from being random mating to being completely assortative, are denoted by MP-1 through MP-5 (Fig. 2).
Similar(59)
The age varies from 10 - 19 years old and mean age of 14,12 (± 2,11 SD).
Stand age varied from 14 to 29 years and stand density was 5150 160,250 trees per hectare.
Mean fledging age varies from 48 days in southern colonies to 78 in more northern ones, reflecting the difference of day length at the different latitudes (Marchant and Higgins 1990).
The tests, to be fully launched in 2016 in a bid to hold schools to account, will be meaningless, say the associations, partly because the performance of children at this age varies from day to day and partly because schools can use different types of assessments.
Their age varied from 19 to 32 years old (mean = 24, standard deviation = 3.78).
The other two studies compared groups of adolescents (maximum age ranged from 18 to 21 years) to adults (minimum age varied from 19 to 30 years) (Ballenger et al. 1982; McElroy et al. 1997).
The utterances were recorded under good acoustic conditions (quiet offices, with the same set of professional microphones) and were pronounced by 304 speakers (152 female, 152 male), whose age varied from 18 to 55 years.
Participants were older community-dwelling adults with mean baseline age varied from 69 to 83 years.
The gestational week and maternal age varied from 9 36.1 weeks and 22 43 years respectively (Table S1 and Table S2 online).
Their age varied from 19 to 47 years (mean 26.3, ssd 6.4) and length of relationship from 4 months to 23 years (mean 3.7, ssd 4.4).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com