SOLUTION: if 3 books are picked at random from a shelf containing 5 novels, 3 books of poems and a dictionary, what is the probability that the dictionary is selected?
Algebra ->
Probability-and-statistics
-> SOLUTION: if 3 books are picked at random from a shelf containing 5 novels, 3 books of poems and a dictionary, what is the probability that the dictionary is selected?
Log On
Question 252757: if 3 books are picked at random from a shelf containing 5 novels, 3 books of poems and a dictionary, what is the probability that the dictionary is selected? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! if 3 books are picked at random from a shelf containing 5 novels, 3 books of poems and a dictionary, what is the probability that the dictionary is selected?
-------------
P(dict selected) + P(dict not selected) = 1
---
P(dict selected) = 1 - P(dict not selected)
= 1- 8C3/9C3
---
1 - (56/84)
= 1 - 2/3
= 1/3
===============
Cheers,
Stan H.
(