We can often correlate age with frequency of illness.
年龄的大小往往与发病率有关.
Any one of the numbers or values in a series dividing the distribution of the individuals in the series into ten groups of equal frequency.
十分位数指把一系列的数字或价格按相等的出现频率分成十组后的其中任何一个数字或价格
He varied the transmission frequency.
他变换了无线电传送的频率。
