SOLUTION: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?
Algebra ->
Probability-and-statistics
-> SOLUTION: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?
Log On
Question 529348: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?
----
# of ways to select 1 red ball: 7
# of ways to select 2 blue: 7C2 = 21
----
# of ways when select 3 to select 1 red: 7*21 = 147
==========================================================
Cheers,
Stan H.
===========
(