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Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question 7 The grouped frequency table summarizes the examination results of this group of students. Examinatlon result (x) 0<xs 20 20 <xS 40 40 <xS 60 60 <xs 80 so <xs 100 Frequency 150 350 1100 1400 200 The teacher sets a grade boundary that is one standard deviation below the mean. Use the cumulative frequency graph to estimate the number of students whose final examination result was below this grade boundary. Use the grouped data to estimate the standard deviation and then use the chart Number of Students =
Transcribed Image Text:Question 7 The grouped frequency table summarizes the examination results of this group of students. Examinatlon result (x) 0<xs 20 20 <xS 40 40 <xS 60 60 <xs 80 so <xs 100 Frequency 150 350 1100 1400 200 The teacher sets a grade boundary that is one standard deviation below the mean. Use the cumulative frequency graph to estimate the number of students whose final examination result was below this grade boundary. Use the grouped data to estimate the standard deviation and then use the chart Number of Students =
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