vary between

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.
See also: between, vary

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.
See also: between, vary
References in periodicals archive ?
The diameters of the ball indentor and foot vary between methods.
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.