Ants
Orkin says the number one pest is Ants.
According to Orkin the #1 Pest problem in America are Ants.
Prob of heads = 1/2 Prob of 3 = 1/6 Prob of both = 1/2 x 1/6 = 1/12
It is 1 - Prob(No even numbers in 10 throws) = 1 - [Prob(Not an even number)]10 = 1 - (1/2)10 = 1 - 1/1024 = 1023/1024 or 0.9990 So you are almost certain to get an even number.
Prob(Rolling a number greater than 2) = 1 - Prob(Not rolling a number greater than 2 on either die) = 1 - Prob(Rolling a number less than or equal to 2 on both dice) = 1 - Prob(Rolling a number less than or equal to 2 on a die)2 = 1 - (1/3)2 = 8/9
Prob = 1/2 * 1/2 = 1/4
Prob( Number on one die is larger than that on the other) = 1 - Prob(Number on both dice is the same). If the two 1s are distinguished as 1 and 1', then the favourable outcomes are (1,1), (1,1'), (1',1), (1',1'), (2,2), (3,3), (5,5) and (8,8) - eight of them in all. So 1 - Prob(Number on both dice is the same) = 1 - 8/36 = 1 - 2/9 = 7/9
expected number = number of toss time 1/6. each face has prob to shown equally 1/6.
If two fair number cubes are rolled, the answers are: Prob(7) = 6/36 = 1/6 Prob(11) = 2/36 = 1/18.
Prob(Cube = 4) = 1/6Prob(Coin = H) = 1/2.Prob(Cube = 4) = 1/6Prob(Coin = H) = 1/2.Prob(Cube = 4) = 1/6Prob(Coin = H) = 1/2.Prob(Cube = 4) = 1/6Prob(Coin = H) = 1/2.
It is 1 - prob(it does not rain today and tomorrow)= 1 - prob(it does not rain today)*prob(it does not rain tomorrow) = 1 - [1- prob(it does rain today)]*[1 - prob(it does rain tomorrow)] = 1 - [1 - 0.8]*[1 - 0.5] = 1 - 0.2*0.5 = 1 - 0.1 = 0.9
America as in the United States of America? If so, the number is 1.