SOLUTION: A golfer carries 16 white golf balls and 4 yellow golf balls.At the driving range, she selects one ball at random and hits it. She then selects another ball at random and hits it.

Algebra.Com
Question 404887: A golfer carries 16 white golf balls and 4 yellow golf balls.At the driving range, she selects one ball at random and hits it. She then selects another ball at random and hits it.
What is the probability that
The first ball hit is yellow?
both balls are yellow?

Answer by Tatiana_Stebko(1539)   (Show Source): You can put this solution on YOUR website!
The first ball hit is yellow is (because in box 4 yellow balls, (16+4)=20 balls)
both balls are yellow is the first ball is yellow and the second ball is yellow. Probability, that the first ball is yellow , the second ball is yellow (after the first ball was yellow)is
Both balls are yellow
Answer: a) 0.2, b)0.0316

RELATED QUESTIONS

A box contains 27 golf balls and 3 yellow golf balls. One golf ball falls from the box.... (answered by jim_thompson5910)
There are 40 golf balls: 10 blue, 16 red, 4 green, 5 yellow, 5 white. Two girls reach... (answered by jim_thompson5910)
A ball is drawn at random from a box containing 7 red balls, 4 white balls and 6 yellow... (answered by DrBeeee)
A golf bag contains 8 blue and 12 yellow golf balls. What is a reasonable prediction of... (answered by Theo)
A golf ball is selected at random from a golf bag. If the golf bag contains 6 orange (answered by ikleyn)
A bag contains 10 white golf balls and 6 striped golf balls. A golfer wants to add 112... (answered by Fombitz)
Two urns contain white balls and yellow balls. The first urn contains 2 white balls and 7 (answered by addingup)
There are 4 red, 4 white, 4 blue and 4 yellow balls in a bag (a total of 16 balls). They... (answered by stanbon)
Two urns contain white balls and yellow balls. The 1st urn contains 5 white balls and 8... (answered by stanbon)