Question

Two balls are drawn from a bag containing 5 white balls and 7 red balls. If the first ball is replaced before the second is drawn, what is the probability that the following will occur? (Enter your probabilities as fractions.)

(a) both balls are red

(b) both balls are white

(c) the first ball is red and the second is white

(d) one of the balls is black

Answer #1

Two balls are drawn from a bag containing 4 white balls and 3
red balls. If the first ball is replaced before the second is
drawn, what is the probability that the following will occur?
(Enter your probabilities as fractions.)
(a) both balls are red
(b) both balls are white
(c) the first ball is red and the second is white
(d) one of the balls is black
A die is thrown twice. What is the probability that a 2...

1. Two balls are drawn from a bag containing 9 white balls and 2
red balls. If the first ball is replaced before the second is
drawn, what is the probability that the following will occur?
(Enter your probabilities as fractions.) (a) both balls are red (b)
both balls are white (c) the first ball is red and the second is
white (d) one of the balls is black
2.The table gives the results of a survey of 1000 people...

A bag contains 7 red balls and 5 white balls. Two balls are
drawn without replacement. (Enter your probabilities as
fractions.)
(a) What is the probability that the second ball is white, given
that the first ball is red?
(b) What is the probability that the second ball is red, given that
the first ball is white?
(c) Answer part (a) if the first ball is replaced before the second
is drawn.

A bag contains 6 red balls and 7 white balls. Two balls are
drawn without replacement. (Enter your probabilities as
fractions.)
(a) What is the probability that the second ball is white, given
that the first ball is red?
(b) What is the probability that the second ball is red, given
that the first ball is white?
(c) Answer part (a) if the first ball is replaced before the
second is drawn.

A bag contains 6 red balls and 9 white balls. Two balls are
drawn without replacement. (Enter your probabilities as
fractions.)
(a) What is the probability that the second ball is white, given
that the first ball is red?
(b) What is the probability that the second ball is red, given that
the first ball is white?
(c) Answer part (a) if the first ball is replaced before the second
is drawn.
A survey questioned 1000 people regarding raising the...

Two balls are drawn in succession out of a box containing 7 red
and 3 white balls. Find the probability that the second ball was
red, given that the first ball was: (A) replaced before the
second draw. (B) not replaced before the second draw.

Two balls are drawn in succession out of a box containing 2 red
and 5 white balls. Find the probability that at least 1 ball was
red, given that the first ball was
(A) Replaced before the second draw.
(B) Not replaced before the second draw.
(A) Find the probability that at least 1 ball was
red, given that the first ball was replaced before the second
draw.
(Simplify your answer. Type an integer or a fraction.)
(B) Find the...

An urn contains 3 white balls and 7 red balls. A second urn
contains 7 white balls and 3 red balls. An urn is selected, and the
probability of selecting the first urn is 0.2. A ball is drawn from
the selected urn and replaced. Then another ball is drawn and
replaced from the same urn. If both balls are white, what are the
following probabilities? (Round your answers to three decimal
places.)
(a) the probability that the urn selected...

A ball is drawn from a bag containing 4 white 6 black
and 5 yellow balls.
Find the probability that a ball drawn is 1)white 2)yellow 3)not
yellow 4)yellow or white

From an urn containing 3 white and 2 black balls, two balls
are drawn one after the other
without replacement. What is the probability that the first
ball drawn is white and the
second black?

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