Question 4 • Mathematics for College Liberal Arts Sem 1 (1207350) BCPS 2025-26
The poll’s sample proportion is 38 ÷ 50 = 0.76, or 76%. Using the stated margin of error of about 12%, the confidence interval is 76% − 12% to 76% + 12%, which is 64% to 88%. This matches “between 64% and 88%.”
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