Research shows that taking notes by hand allows students to remember material better than typing up those notes on a computer. A similar study on the topic was conducted by a psychologist trying to show that taking notes using the pen-and-paper method leads to better recall ability than typing them up. Half of the students in a class were randomly assigned to take notes for one week with the pen-and-paper method and the other half was assigned to take notes using an electronic device. At the end of the week, an exam was given to all students in the class. Exam scores were recorded from 100 students in this study. A sample of 9 students was selected from the original group and their exam scores are given below: 66, 74, 72, 71, 66, 70, 71, 70, 70 (1 pt) What are the appropriate measures of variability? (write out in words) (6 pts) Write in the formula and then calculate the appropriate measures of variability: 1) 2) 3)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Research shows that taking notes by hand allows students to remember material better than typing up those notes on a computer. A similar study on the topic was conducted by a psychologist trying to show that taking notes using the pen-and-paper method leads to better recall ability than typing them up. Half of the students in a class were randomly assigned to take notes for one week with the pen-and-paper method and the other half was assigned to take notes using an electronic device. At the end of the week, an exam was given to all students in the class.

Exam scores were recorded from 100 students in this study. A sample of 9 students was selected from the original group and their exam scores are given below:

66, 74, 72, 71, 66, 70, 71, 70, 70

(1 pt) What are the appropriate measures of variability? (write out in words)

(6 pts) Write in the formula and then calculate the appropriate measures of variability:

1)

2)

3)

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