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? students What percentage of students scored between 70 and 90 points on the exam? Round your answer to the nearest tenth of a percent. Which of the following statements about the distribution of final exam scores is true? O At least four students earned fewer than 40 points on the exam. More students earned Cs (between 70 and 80 points) than As (at least 90 points). A majority of students earned between 80 and 90 points on the cxam. The lowest score earned on the exam was 10 points.
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? students What percentage of students scored between 70 and 90 points on the exam? Round your answer to the nearest tenth of a percent. Which of the following statements about the distribution of final exam scores is true? O At least four students earned fewer than 40 points on the exam. More students earned Cs (between 70 and 80 points) than As (at least 90 points). A majority of students earned between 80 and 90 points on the cxam. The lowest score earned on the exam was 10 points.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
Transcribed Image Text: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?
students
What percentage of students scored between 70 and 90 points on the exam? Round your answer to the nearest tenth of
a percent.
%
Which of the following statements about the distribution of final exam scores is true?
O At least four students earned fewer than 40 points on the exam.
O More students earned Cs (between 70 and 80 points) than As (at least 90 points).
O A majority of students earned between 80 and 90 points on the exam.
O The lowest score earned on the exam was 10 points.
Transcribed Image Text:1 of 16
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 71 students in the class.
30 -
20 -
10 -
20
40
60
80
100
Exam scores
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?
students
What percentage of students scored between 70 and 90 points on the exam? Round your answer to the nearest tenth of
Kouanbas.
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