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 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

how did Joseph Stalin die
If the dimensions of a square based pyramid are tripled what happens to the volume?
How does the genetic code in dna control an organisms traits?
How do geologic changes affect evolution ?
why does photosynthesis only occur in plants
What effect did the Great Awakening have on the American colonies? The Great Awakening caused a split in American Protestantism in the American colonies. The Gr
Why are economies never purely market or command economies? A. International law prohibits purely command or market economies. B. Government officials do not re
Why do you think enslaved people,like Equiano, were not allowed to keep their African names?
how do you solve 5s divided by 7=30 and other equations like it
The Senate of Clinton's administration was controlled by the Republicans. true false