Answer:
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Hey can you give me the other half of the question
Answer:
the margin of error is 0.05
Step-by-step explanation:
Margin of error = confidence interval ÷ 2
MOE = CI ÷ 2
Confidence interval CI = 0.2 - 0.1 = 0.1
MOE = CI ÷ 2 = 0.1 ÷ 2 = 0.05
the margin of error is 0.05
So 9 students = 25% (100%-75%=25%)
100 : 25 = 4
4 * 9 =
36 students
3/4x - 2/3 = 5/6
3/4x = 5/6 + 2/3
3/4x = 5/6 + 4/6 = 9/6
x = (9/6)/(3/4)