Three statistics classes all took the same test and the histograms of the test scores are shownto the right. Complete parts a through c.a) Overall, which class do you think performed better on the test? Why?Classb) How would you describe the shape of each distribution?The distribution for class 1 isThe distribution for class 2 isThe distribution for class 3 isc) Match each class with the corresponding boxplot.Class 1 corresponds to boxplotClass 2 corresponds to boxplotClass 3 corresponds to boxplotandandandScores100-80-60-40-20# of StudentsHOH14.99performed better on the test because both the mean and the median for that class are the highest out of all three classes.60Class 190of StudentsPRADE3060 90Class 2of StudentsP.N.A.P.9,3060 90Class 3

Given the histograms of the test scores of three statistics classes who took the same test as

Answered: Three statistics classes all took the…

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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A histogram aids in analyzing the _______ of the data. A) Shape of the distribution B) Context C) Type D) Bias
The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…
tudents in a statistics class took their first test. The following are the scores they earned. Create a requency distribution and histogram for the data using a lower class limit of 49.5 and a class width of 10. escribe the shape of the distribution. ) Since data were collected for 1 make is a histogram 49.5 Classes 90 98 90 94 95 I 98 92 99 91 95 83 81 83 87 88 87 87 82 77 73 71 76 62 69 50 ) For this one the class width is given to be the following: class width = Complete the frequency/relative frequency table using the given class width. Round relative frequencies to 3 decimal places. quantitatve Frequency variable(s), the correct graph to Which of the following is the correct histogram for the given data? Relative Frequency
On the first day of class, a statistics professor asked her students to report their grade point averages (GPAs) as part of a class survey. For those students who knew their GPAs, the histogram was: The distribution is:
A student must have a B average or better for all courses to qualify for any athletic team at Jefferson High School. The table below shows the distribution of students' grades in three sports at the school. Students with Students with a Sport an A Average B Average Field hockey 15 4 Basketball 7 13 Football 2 22
The mean and median of a frequency distribution is 15 and 20 respectively. Then the mode of the distribution is O a. 17.5 O b. 16 O c. 20 O d. 30
The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 1 4 1 7 4 8 4 9. 10 2 The mean score on this test is: The median score on this test is: Check Answer
Vineyards Here are summary statistics for the sizes (inacres) of Finger Lakes vineyards:a) Would you describe this distribution as symmetric orskewed? Explain.b) Are there any outliers? Explain.c) Create a boxplot of these data.d) Write a few sentences about the sizes of thevineyards.
Music library Students were asked how many songsthey had in their digital music libraries. Here’s a displayof the responses:a) What aspect of this distribution makes it difficult tosummarize, or to discuss, center and spread?b) What would you suggest doing with these data if wewant to understand them better?
a. Use technology to produce a dotplot and b a histogram of this distribution. Try a few different histograms, with varying subintervals, to find the one that you consider the best summary of the distribution. b. Write a few sentences describing the shape, center, and spread of this distribution.
The table below shows the scores of a group of students on a 10-point quiz. Frequency Test Score 3 4 5 6 7 8 9 10 2 3 0 3 3 3 4 4 The mean score on this test is: The median score on this test is:

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