Question

melissa is in the 7 th 7 th 7, start superscript, start text, t, h, end text, end superscript grade. she wanted to know how after-school activities done on the week before an exam affect the score of the exam. she asked all of her classmates to record their after-school activities on the week before a big exam. later, she compared the records with the achieved scores of each student. what type of statistical study did melissa use?

Answer 1

Melissa used a comparative study to analyze how after-school activities done on the week before an exam affect the score of the exam.

Step-by-step explanation:

Melissa used a type of statistical study known as a comparative study. In this study, she compared the records of after-school activities with the achieved scores of each student. By doing this, she was able to analyze how the after-school activities done on the week before an exam affect the score of the exam.

Answer 2

Melissa is using a comparative study to analyze the relationship between after-school activities and exam scores.

Step-by-step explanation:

Melissa is using a type of statistical study known as a comparative study. She is comparing the after-school activities of her classmates with their achieved exam scores to determine if there is a relationship between the two variables.

This study will help Melissa understand how after-school activities done on the week before an exam may affect exam scores.