Homework Help is Here – Start Your Trial Now!
Math
Statistics
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 80 60- 40- 12 7 3 2 60 70 80 90 100 110 120 130 140 150 160 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, 1; 75, 2; 85, 12; 95, 41; 105, 58; 115, 42; 125, 32; 135, 7; 145, 3; 155, 2 O B. 60-70, 1; 70-80, 2; 80-90, 12; 90-100, 41; 100-110, 58; 110-120, 42; 120-130, 32; 130-140, 7; 140-150, 3; 150-160, 2 Oc. 60-69, 1; 70-79, 2; 80-89, 12; 90-99, 41; 100-109, 58; 110-119, 42; 120-129, 32; 130-139, 7; 140-149, 3; 150-159, 2 (d) Which class has the highest frequency? O A. 100-110 O B. 100-109 O c. 90-99 O D. 105

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 80 60- 40- 12 7 3 2 60 70 80 90 100 110 120 130 140 150 160 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, 1; 75, 2; 85, 12; 95, 41; 105, 58; 115, 42; 125, 32; 135, 7; 145, 3; 155, 2 O B. 60-70, 1; 70-80, 2; 80-90, 12; 90-100, 41; 100-110, 58; 110-120, 42; 120-130, 32; 130-140, 7; 140-150, 3; 150-160, 2 Oc. 60-69, 1; 70-79, 2; 80-89, 12; 90-99, 41; 100-109, 58; 110-119, 42; 120-129, 32; 130-139, 7; 140-149, 3; 150-159, 2 (d) Which class has the highest frequency? O A. 100-110 O B. 100-109 O c. 90-99 O D. 105

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
See similar textbooks
icon
Related questions
Question

4

IQs of 7th Grade Students 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). 80- 58 60- 41 -42 32 40- 12 2 20- 7 3- 0- 60 70 80 90 100 110120 130 140 150 160 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. А. 65, 1; 75, 2; 85, 12; 95, 41; 105, 58;B 115, 42;B 125, 32; 135, 7; 145, 3;B 155, 2 В. 60-70, 1; 70-80, 2;B 80-90, 12;B 90-100, 41;B 100-110, 58;B 110-120, 42; 120-130, 32; 130-140, 7%;B 140-150, 3;B 150-160, 2 С. 60-69, 1; 70-79, 2;B 80-89, 123;B 90-99, 41;B 100-109, 58; 110-119, 42; 120-129, 32;B 130-139, 7%;B 140-149, 3;B 150-159, 2 (d) Which class has the highest frequency? A. 100-110 В. 100-109 C. 90-99 O D. 105 Frequency
Transcribed Image Text:IQs of 7th Grade Students 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). 80- 58 60- 41 -42 32 40- 12 2 20- 7 3- 0- 60 70 80 90 100 110120 130 140 150 160 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. А. 65, 1; 75, 2; 85, 12; 95, 41; 105, 58;B 115, 42;B 125, 32; 135, 7; 145, 3;B 155, 2 В. 60-70, 1; 70-80, 2;B 80-90, 12;B 90-100, 41;B 100-110, 58;B 110-120, 42; 120-130, 32; 130-140, 7%;B 140-150, 3;B 150-160, 2 С. 60-69, 1; 70-79, 2;B 80-89, 123;B 90-99, 41;B 100-109, 58; 110-119, 42; 120-129, 32;B 130-139, 7%;B 140-149, 3;B 150-159, 2 (d) Which class has the highest frequency? A. 100-110 В. 100-109 C. 90-99 O D. 105 Frequency
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS