Meap12345678910
25.06.2019 •
Mathematics
Robert has attended 32 out of 40 after-school band practices this year. based on his record of attendance, which is the probability that robert will attend band practice in the future?
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Ответ:
The probability that Robert will attend a band practice in future is
Step-by-step explanation:
Topic: Experimental Probability
Given
Number of Band Practices = 40
Number of Attendance = 32
Experimental probability is probability that is determined on the basis of the results of an experiment repeated many times. It is calculated by ratio of the number of times an event occurs to the total number of trials or times the activity is performed.
To calculate the probability that Robert will attend a band practice in future, we make use of the following formula
By Substitution
Hence, the probability that Robert will attend a band practice in future is
Ответ:
Both A and B