I do not understand how the odds of drawing a queen from a deck of cards is 3to1

Answer 1

it's 3 to 1 because there are 4 queens in 1 deck so if u do 4-1 it equals 3 because three are left and then one itself

Answer 2

it isn't.

prob of drawing a queen = 4/52 = 1/13
prob of not drawing a queen = 12/13

so the odds in favour of drawing a queen = (1/13) / (12/13)
= 1/12
or 1 : 12