Concept explainers
For Exercises 1-5, choose the correct letter,
Seven of 28 domino tiles show the same number of dots on each side. These tiles are called doubles. You pick a domino tile at random. Then you pick another tile without replacing the first. What is the probability that both tiles are doubles?
F.
G.
H.
I.
Find the probability :
P(both doubles)
Answer to Problem 4STP
G
Explanation of Solution
Given:
Seven of 28 domino tiles show the same number of dots on each side.These tiles are called doubles. You pick a domino tile at random.Then you pick another tile without replacing the first.
Formula Used:
Calculation:
Total domino tiles = 28
Tiles that are doubles = 7
Number of favorable outcomes of first doubles tile = 7
Number of tiles after first pick , without replacement = 27
Number of favorable outcomes of second doubles tile = 6 (since the first tile is not replaced )
Hence , the correct option is G.
Chapter 12 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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