Concept explainers
To calculate: The probability of winning a lottery, if in a lottery, there are ten balls numbered
Answer to Problem 15CT
Solution:
The probability of winning a lottery is
Explanation of Solution
Given information:
In a lottery, there are ten balls numbered
Formula used:
The formula to find probability for any event
The number of ways of selecting
Calculation:
In a lottery, there are ten balls numbered
And, win
To select numbers order is important hence use permutation to find total number of ways to pick five numbers from given
Here,
Thus,
By writing
So here total number of ways to pick fives number is
Out of
Thus,
Therefore, the probability of winning a lottery is
Chapter 13 Solutions
Precalculus
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