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angelteddy033
20.07.2019 •
Mathematics
In a sample of 800 u.s. adults, 218 dine out at a restaurant more than once a week. if two u.s adults are selected at random from the population of all u.s. adults without replacement. assuming the sample is representative of all u.s. adults. (a) find the probability that both adults dine out more than once per week\
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Ответ:
0.074
Step-by-step explanation:
Given : The total number of U.S. adults in the sample = 800
The number of U.S. adults dine out at a restaurant more than once a week = 216
The probability for an adult dine out more than once per week :-
If another person is selected without replacement ,then
Total adults left = 799
Total adults left who dine out at a restaurant more than once a week = 217
The probability for the second person dine out more than once per week :-
Now, the probability that both adults dine out more than once per week :-
Ответ:
gigy oigyi ogyi ti gab tygd thor
Step-by-step explanation: