Apediatrician has administered a flu vaccine to 1,000 children in a local community. the average number of children who contract the flu after they get vaccinated is 4 cases per 1,000 children. what is the probability that none of the 1,000 children will contract the flu this season? hint: use a poisson distribution with λ = 4. group of answer choices

1.83%

Step-by-step explanation:

For the expected value of 4 cases per 1000 children. We can use a formula for Poisson distribution to calculate the probability that none of the 1000 students would contract the flu:

So the probability of this to happens is 1.83%

answer: its because of life

step-by-step explanation: i dont know

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)