Food allergies affect an estimated 7% of children under age 5 in the us. what is the probability that in a kindergarden class of 12 kids under age 5 at least one of them has food allergies? you may assume that the students in this class are a representative random sample from the population.

Probability of atleast one of 12 student has food allergies ≈ 0.58 ( approx)

Step-by-step explanation:

Given: Probability of a children under age 5 has food allergies = 7%

                                                                                                        =

To find : Probability of atleast one of 12 student has food allergies

Probability of a chindren under age 5 does not have food allergies =

                  ⇒ prob =

now we find Probability of atleast one of 12 student has food allergies this means we have to find prob of 1 student, 2 student, 3 student, till 12 student have allergy out of 12 student of class then add all prob.

But instead of finding all these probability we find probability of student having no allergy.i.e., 0 student then subtract it from 1(total probability)

Probability of 0 student having allergy out of 12 student =

Therefore, Probability of atleast one of 12 student has food allergies

                  =

                  =

                  ≈ 0.58 ( approx)

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

3.how is solving radical equations different than solving linear equations?

step-by-step explanation: