contestada

A fish bowl contains blue, green and red plastic fish.
When a fish is picked out at random ,the probability of it being blue is 0.7 and the probability of it being green is 0.2.
A prize is gyven if a red fish is picked out.
What is the probability of Matt picking a red fish? Gyve your answer as a decimal.
There are 60 fish in the fish bowl. How many of the fish are red?

Respuesta :

ronhagrid310

Answer:

A fish bowl contains blue, green and red plastic fish.

When a fish is picked out at random:

The probability of it being blue is 0.7

The probability of it being green is 0.2

=> The probability of picking a red fish: P  = 1 - 0.7 - 0.2 = 0.1

There are 60 fish in the fish bowl. Number of red fish is:

N = 60 x 0.1 = 6

Hope this helps!

:)

Otras preguntas