Ias are measured to the nearest whole number. The frequency of each class is labeled above each rectangle. Use the histogram to answers parts (a) through (g). 60- 60 70 80 90 1óo ti0 120 130 140 150 t60 IQ scores (a) How many students were sampled? students (b) Determine the class width. The class width is (c) Identify the classes and their frequencies. Choose the correct answer below. O A. 65, 2, 75, 4; 85, 11; 95, 54; 105, 48; 115, 41; 125, 30; 135, 7; 145, 2; 155, 1 OB. 60-70, 2, 70-80, 4; 80-90, 11; 90-100, 54; 100-110, 48; 110-120, 41; 120-130, 30; 130-140, 7; 140-150, 2; 150-160, 1 Oc. 60-69, 2; 70-79, 4; 80-89, 11; 90-99, 54; 100-109, 48; 110-119, 41; 120-129, 30; 130-139, 7; 140-149, 2; 150-159, 1
Ias are measured to the nearest whole number. The frequency of each class is labeled above each rectangle. Use the histogram to answers parts (a) through (g). 60- 60 70 80 90 1óo ti0 120 130 140 150 t60 IQ scores (a) How many students were sampled? students (b) Determine the class width. The class width is (c) Identify the classes and their frequencies. Choose the correct answer below. O A. 65, 2, 75, 4; 85, 11; 95, 54; 105, 48; 115, 41; 125, 30; 135, 7; 145, 2; 155, 1 OB. 60-70, 2, 70-80, 4; 80-90, 11; 90-100, 54; 100-110, 48; 110-120, 41; 120-130, 30; 130-140, 7; 140-150, 2; 150-160, 1 Oc. 60-69, 2; 70-79, 4; 80-89, 11; 90-99, 54; 100-109, 48; 110-119, 41; 120-129, 30; 130-139, 7; 140-149, 2; 150-159, 1
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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Transcribed Image Text:The following frequency histogram represents the IQ scores of a random sample of seventh-grade students.
IQs are measured to the nearest whole number. The frequency of each class is labeled above each rectangle.
Use the histogram to answers parts (a) through (g).
IQs of 7th Grade Students
60 70 80 90 100 110 120 130 140 150 160
(a) How many students were sampled?
Ostudents
(b) Determine the class width.
The class width is
(c) Identify the classes and their frequencies. Choose the correct answer below.
O A
65, 2; 75, 4; 85, 11; 95, 54; 105, 48; 115, 41; 125 , 30; 135, 7; 145, 2; 155, 1
O B. 60-70, 2; 70-80, 4; 80-90, 11; 90-100, 54; 100-110, 48; 110-120, 41; 120-130, 30; 130-140, 7; 140-150, 2; 150-160, 1
Oc. 60-69, 2; 70-79, 4; 80-89, 11; 90-99, 54; 100-109, 48; 110-119, 41; 120-129, 30; 130-139, 7; 140-149, 2; 150-159, 1
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