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A class of 30 students in an introductory statistics class took a 15-item quiz, with each item worth 1 point. The standard deviation for the resulting score distribution is 0. You know that: O everyone correctly answered the same number of items. an arithmetic error must have been made. about half of the scores were above the mean. the mean, median, and mode must all be zero.

A class of 30 students in an introductory statistics class took a 15-item quiz, with each item worth 1 point. The standard deviation for the resulting score distribution is 0. You know that: O everyone correctly answered the same number of items. an arithmetic error must have been made. about half of the scores were above the mean. the mean, median, and mode must all be zero.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A class of 30 students in an introductory statistics class took a 15-item quiz, with each item worth 1 point. The standard deviation for the resulting score distribution is 0. You know that: O everyone correctly answered the same number of items. Oan arithmetic error must have been made. O about half of the scores were above the mean. O the mean, median, and mode must all be zero.
Transcribed Image Text:A class of 30 students in an introductory statistics class took a 15-item quiz, with each item worth 1 point. The standard deviation for the resulting score distribution is 0. You know that: O everyone correctly answered the same number of items. Oan arithmetic error must have been made. O about half of the scores were above the mean. O the mean, median, and mode must all be zero.
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