Answer:
1/2 or 0.5
Step-by-step explanation:
Saying that there is a 50-50 chance of an event happening is equivalent to saying there is a 1 in 2 chance. Therefore, expressing that degree of likelihood as a value between 0 and 1:
![\frac{1}{2}=0.50](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%3D0.50)
There is a 1/2 or 0.5 chance that a randomly selected adult has pierced ears.
Answer:
I think it should be zero
The probability of picking a black ball first is
![\dfrac{4}{5}](https://tex.z-dn.net/?f=%5Cdfrac%7B4%7D%7B5%7D)
, because there are 4 black balls and 1 white ball which is 5 balls in total. After picking the first ball, 4 balls remain - 3 black and 1 white, so the probability of picking a white ball is
![\dfrac{1}{4}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B4%7D)
.
So, the probability of picking a black ball first followed by a white ball is
Answer:
What?
Step-by-step explanation: