Answer:
Step-by-step explanation:
su - -rqt
u = -rqt/s
To put together or pair something...
The probability is 0.1253.
This is binomial because 1) there are two outcomes (either do or do not use in class); 2) the events are independent of each other (the probability of one person using a phone in class does not affect the probability of another person doing this); and 3) there is a fixed number of trials (9).
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The answer for this question is very tricky but is to work out its B.
