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bronkosarecool
12.11.2019 •
Mathematics
When ryan is serving at a restaurant, there is a 0. 75 probability that each party will order drinks with their meal. during one hour, ryan served 6 parties. assuming bc that each party is equally likely to order drinks, what is the probability that at least one party will not order drinks?
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Ответ:
0.82
Step-by-step explanation:
We are given that
Total number of parties=n=6
The probability that each party will order drinks with their meal,q=0.75
The probability that party will not order drink with their meal=p=1-0.75=0.25
We have to find the probability that at least one party will not order drinks with their meal
Binomial probability distribution
Using the formula
Using formula;![nC_r=\frac{n!}{r!(n-r)!}](/tpl/images/0370/1204/8e2e2.png)
Hence, the probability that at least one party will not order drinks=0.82
Ответ:
1. 50% 2. 39 cards can be drawn 3.you didnt show the table
Step-by-step explaination: