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Suppose that, at the end of last semester, Marie gave her introductory statistics class a final exam. After grading these exam she created a histogram illustrating the distribution of exam scores for the 64 students in the class. Frequency 20- 10 20 40 students Exam scores 60 80 100 Each of the bars in this histogram includes only the left endpoint of the interval, except for the bar representing scores between 90 and 100 points, which also includes the right endpoint. How many students scored at least 80 points on the exam? What percentage of students scored between 50 and 70 points on the exam? Round your answer to the nearest tenth of a percent.

Suppose that, at the end of last semester, Marie gave her introductory statistics class a final exam. After grading these exam she created a histogram illustrating the distribution of exam scores for the 64 students in the class. Frequency 20- 10 20 40 students Exam scores 60 80 100 Each of the bars in this histogram includes only the left endpoint of the interval, except for the bar representing scores between 90 and 100 points, which also includes the right endpoint. How many students scored at least 80 points on the exam? What percentage of students scored between 50 and 70 points on the exam? Round your answer to the nearest tenth of a percent.

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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© BFW Publishers Suppose that, at the end of last semester, Marie gave her introductory statistics class a final exam. After grading these exams, she created a histogram illustrating the distribution of exam scores for the 64 students in the class. Frequency 20 10 0 20 students 40 Exam scores % 60 80 Each of the bars in this histogram includes only the left endpoint of the interval, except for the bar representing scores between 90 and 100 points, which also includes the right endpoint. How many students scored at least 80 points on the exam? 100 What percentage of students scored between 50 and 70 points on the exam? Round your answer to the nearest tenth of a percent.
Transcribed Image Text:© BFW Publishers Suppose that, at the end of last semester, Marie gave her introductory statistics class a final exam. After grading these exams, she created a histogram illustrating the distribution of exam scores for the 64 students in the class. Frequency 20 10 0 20 students 40 Exam scores % 60 80 Each of the bars in this histogram includes only the left endpoint of the interval, except for the bar representing scores between 90 and 100 points, which also includes the right endpoint. How many students scored at least 80 points on the exam? 100 What percentage of students scored between 50 and 70 points on the exam? Round your answer to the nearest tenth of a percent.
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