Concept explainers
To calculate: the probability that there will be no quizzes during a five day week
Answer to Problem 20PPS
The required probability is 0.1944
Explanation of Solution
Given information:
Mr. Woodruff gives a pop quiz at the beginning of class 15% of the time.
Calculation:
The fire drill can be between 8: 30 and 3: 00 A.M (between 390 minutes). So the probability that fire drill is in afternoon (that is between
P (in afternoon)
And the probability that fire dill is between 1: 20 to 1: 55 is
P (between 1: 20 to 1: 55)
The probability that it will start during the test is,
Hence, the required probability is 0.1944
Chapter 12 Solutions
Algebra 2
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