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Heneyda
24.09.2019 •
Mathematics
50 points answer correctly
a survey conducted in a certain town found that 1 out of every 5 individuals owned a bike. a statistician calculated the margin of error to be 1.5%. what is the maximum percentage of individuals who own a bike?
a ) 21.5%
b )20%
c ) 6.5%
d ) 30%
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Ответ:
Hope this helps:)
Ответ:
Total =790
40% kids=316
Step-by-step explanation:
Suppose x is the total number of people in concert
and it is given that 60% are adults so 40% left are kids
so 60% of x = 474
60/100 of x=474
x=(474*100)/60
x=4740/6
x=790
so total people in concert are 790 in number
so 40% of 790=# of kids
(40/100)*790=# of kids
79*4=316
so 316 equals 40% of kids in concert
Checking:
316+474=790