Concept explainers
The probability to guess correctly the last two digits in the price of the car.
Answer to Problem 7CP
The probability to guess correctly the last two digits in the price of the car is 21.
Explanation of Solution
Given:
Three digits 1, 4, 7.
Total number of digits is 10.
They are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Three digits 1, 4, 7 already used.
Therefore,
Number of digits left is 7.
Therefore,
The probability to guess correctly the last two digits in the price of the car without repeating the used digit and no repetition is
Hence, the probability to guess correctly the last two digits in the price of the car is 21.
Chapter 12 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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