subject
Mathematics, 12.09.2019 18:10 hdkdkdbx

there are 20 tiles in a bag. of these, 9 are purple, 5 are black and the rest are white.
event a = drawing a white tile on the first draw
event b = drawing a black tile on the second draw
if two tiles are drawn from the bag one after the other and not replaced, what is p(b|a) expressed in simplest form?


there are 20 tiles in a bag. of these, 9 are purple, 5 are black and the rest are white.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
question
Mathematics, 21.06.2019 21:30
Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.
Answers: 1
question
Mathematics, 21.06.2019 23:30
Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2
Answers: 1
question
Mathematics, 22.06.2019 00:30
Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm
Answers: 1
You know the right answer?
there are 20 tiles in a bag. of these, 9 are purple, 5 are black and the rest are white.
event...
Questions
question
Mathematics, 20.02.2020 04:40
question
Mathematics, 20.02.2020 04:41