The probabilities of two persons A and B for telling the truth are 4/5 and 3/4 respectively. Find the probability that they contradict each other when asked about same topic ?

Two natural events can result in the failure of a dam. Firstly, a very high flood, exceeding the design capacity of its spillway (event A), may destroy it. Secondly, a destructive earthquake (event B) can cause a structural collapse. Let P = 0.04 and P=0.02 denote the respective probabilities of...

Here is the data 10 mg sub A Placebo headache 15 65 n headache 17 3 Question If two different subjects are randomly selected, find the probability that they will both have a headache. I think that it would be 15/100*17/99 but the...

What are the odds of choosing two clubs out of a deck of 52 cards?

a.) when rolling three dice, what is the probability of rolling at least one 1? b.) when rolling three dice, what is the probability of rolling exactly one 1?