What is the probability of meeting at least one person with the flu in 12 random encounters on campus when the infection rate is 3% (3 in 100 people have the flu)

Answer-

The probability of meeting at least one person with the flu in 12 is 0.3062 or 30.62%

Solution-

The probability of k successes in n trials where p is the probability of success on any given trial is given by,

Here, 3 people out of 100 have the flu, so

As there are total 12 number of people, so

And

The probability selecting 0 number of person with the flu out of 12 is,

So, the probability of meeting at least one person with the flu in 12 is,

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!