The results of a survey indicate that the proportion of voters who support a new bill is likely in the interval
(0.18, 0.24).
What is the margin of error, as a decimal?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)