madnessrelic7853 madnessrelic7853

01-07-2018
Mathematics

contestada

There are 5 chemistry, 6 physics, and 7 math teachers in a school. if 3 teachers are selected randomly, find the probability that at least one is a math teacher.

Respuesta :

itsai7376p74zuj itsai7376p74zuj

01-07-2018

77.2%

To find the probably and at least on you must find the probability of none and subtract from one.

The probability of none can be found like so:

(5+6 over 5+6+7)^3 = .228

1 - .228 = .772

Hope this helps!

Answer Link

Otras preguntas

Find the surface area of the pyramid to the nearest whole number.

Literally, one celled.

Does anyone know how to cite a concert program??? please tell me how

Suppose that you look into the photometer’s eyepiece and the fluorescent disks appear to be equal in intensity. If the distance between the photometer to lamp 1

Whats the answer for 3a

Find the rate of change. Find the slope of the line Find the rate of change

Which organization pattern does this paragraph follow? How was the

Where are the zeros of the function f(x)=x2 +8x+4 expresses in simplest form

beau's recipe for granola bars calls for 3 1/2 cups of oatmeal. he only has a 1/6 cup scoop. how many scoops of oatmeal will he need for the recipe.

Which of the following is true regarding deaf and blind children in the 1800s? (1 point) Deaf and blind children were required to live in group homes or institu