"whose rate" is a correct and usable part of a sentence in written English.
It is used to show possession or ownership (e.g. "She was the only one whose rate increased.").
The mathematical term merely describes something whose rate of growth is proportional to its size.
"That would be pretty fantastic for you, Stephen," he said to his successor, whose rate is closer to 30-40%.
The exponential function describes the behavior of any quantity whose rate of change is proportional to its size.
The ratio is much higher for minority groups, particularly among Latinos, whose rate is 5.4 births for every death.
Neighborhoods whose rate of poverty dropped from above 30% to less than 15% were clustered in particular areas.
Each count is well modeled as a Poisson random variable, whose rate parameter is a deterministic function of the latent properties of nearby stars and galaxies.
(bottom) Neurons communicate with each other in the form of action potentials or "spikes". Spikes are discrete events whose rate and timing carry information.
For years, researchers interestd in gender and depression have tended to focus on how the disease affects women, whose rate of depression is twice that of men.
The founding father of the latter trope was Eisenhower, who declared that Sweden followed "socialist philosophy and whose rate of suicide has gone up almost unbelievably.
Depositors stashed cash in money market accounts whose rate of return (3.4percentt) was looking more generous by the hour compared with the investment options on Wall Street.
Most homeowners are more comfortable with a mortgage that has a fixed rate for its whole term than with a loan whose rate could rise sharply.
