Original sentence: The course curriculum is organized around four basic themes; the first involves exploring data and covers 20-30% of the exam.The fourth theme, which covers 30-40% of the exam, involves statistical inference using point estimation, confidence intervals, and significance tests.The second theme involves planning and conducting a study and covers 10-15% of the exam.This theme covers 20-30% of the exam
Edited sentence: The course curriculum is organized around four basic themes; the first involves exploring data and covers 20–30% of the exam.The fourth theme, which covers 30–40% of the exam, involves statistical inference using point estimation, confidence intervals, and significance tests.The second theme involves planning and conducting a study and covers 10–15% of the exam.This theme covers 20–30% of the exam