Vary between - Idioms by The Free Dictionary
vary between (someone and someone else) and vary between something and something else
to fluctuate in choosing between people or things. In choosing a bridge partner, Sam varied between Tom and Wally. I varied between chocolate and vanilla cake for dessert.
vary between (something and something else)
to fluctuate between one thing and another. The daytime temperatures vary between 80 and 90 degrees. She varies between angry and happy.
References in periodicals archive
The diameters of the ball indentor and foot vary between
State due dates vary between
six and 18 months after the date of death.
Like Wunderlich, Mackowiak's team found that normal temperatures vary between
individuals (by as much as 4.8[degree]F) and even within individuals over the course of a day (by up to 1.09[degree]F).
This test allows the pattern of coefficients on the paper rate to vary between
the 1960s and 1970s as compared with the 1980s but preserves the long-run properties of the equation.