英和和英

to take the average―strike an average―find the mean

to take the average―strike an average

an average

the nth root of the product of n numbers, called the geometric mean

the mean value

a weighted average

the deviation from the mean

to keep the equilibrium―keep the equipoise

to keep two forces in equilibrium―keep two weights in equipoise―counterbalance the excess―counterpoise the excess

to keep two forces in equilibrium―keep two weights in equipoise

the weighted average

average tare

the state of being that is average

about average

the average marks

average stature

one's batting average

in the medium term

the balance of power

a grade of B plus

the average score

strike an average

a grade B

life expectancy

the expectation of life

a grade of B minus

an intermediate range

an average wage

average life span

They average a little over twelve―twelve and a fraction.