Question #3c669

1 Answer
Asaf B. · Solace M.
May 21, 2017

Both:
Green #= 1/25#
Red #= 9/100#
Blue #= 1/4#

Red and blue(the order is irreverent because of the replacement) #= 3/20#

Explanation:

The overall of marbles are 10 which mean that the blue probability is #5/10=1/2#, the red
#3/10#, and the green
#2/10=1/5#.
No matter which draw since they have replacement.
Since you need to check both of them you need to use #xx# (if it was "or" we'll use +)
A. Both red #3/10xx3/10=9/100#
B. Both green #1/5xx1/5=1/25#
C. Both blue #1/2xx1/2=1/4#
D. Red and blue(the order is irreverent because of the replacement. #3/10xx1/2=3/20#

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