Answer:
(b) 6.25%
Step-by-step explanation:
Margin of error is the chances of percentage deviation that may differ from original population data. The margin of error for 95% confidence interval can be 6.25%. To find this we divide population standard deviation with square root of sample size. The margin of error is the estimate of the deviation from actual and real value of population.
The answer is 4 because k+2 would be 2 then times by 6 which is 12 then subtract 8 would be 4
Miles? I'm not sure that it'd be km (unless its not an american airline)
550×10 I think how do you want it to be explained