A study shows lung cancer accounts for 17% of women's cancer deaths

The number of visible stars is very great

With the extra rehearsals, work is really tight

There were twice as many university applicants in 1992 as in 1982

So that Michelangelo might paint certain figures on the ceiling of the Sistine Chapel, so that Shakespeare might write certain speeches and Keats his poems, it seemed to me worthwhile that countless millions should have lived and suffered and died

The mean value of the frequency decreases with increasing amplitude

The number of guests is 20

Among the divisors of 90, how many numbers are not divisible by 9

The number of traffic accidents seems to be on the increase

Statistics deals with collected numbers representing facts

The circulation of the newspaper is only one-third that of its competitor

All this is visible to numerous observers

Smokers take twice as many days off sick as non-smokers